Draft:Shiren 5 2020:Fever Pot: Difference between revisions
N. Harmonik (talk | contribs) m (Text replacement - "\[\[Draft:Shiren 5 Vita:Locations\/(.*)\|(.*)]]" to "{{Shiren5Vita|$2}}") |
N. Harmonik (talk | contribs) m (Text replacement - "Shiren 5 Strategy Guides" to "Shiren 5 2020 Strategy Guides") Tags: Mobile edit Mobile web edit |
||
(11 intermediate revisions by 2 users not shown) | |||
Line 1: | Line 1: | ||
{{ | {{Shiren 5 2020 Draft}} | ||
== Using Fever Pots == | '''Fever Pots''' are some of the most valuable items. A Fever Pot can replicate other items except for pots, which makes them key if you want to do {{Shiren52020|Crafting}}. Replicating items helps with [[Draft:Shiren 5 2020:Creating New Items|Creating New Items]] and {{Shiren52020|Mass Production}}. Players who aren't interested in crafting may be able to trade a Fever Pot for other powerful items with other players online. | ||
==Using Fever Pots== | |||
If you fill a Fever Pot with identical items, it will break open and twice as many of those items will spill onto the ground around you. If you insert 2+ items that are not identical, it will explode, destroying the Fever Pot, everything in it, and everything on the ground in the 3x3 area around you, and do explosion damage to you. | If you fill a Fever Pot with identical items, it will break open and twice as many of those items will spill onto the ground around you. If you insert 2+ items that are not identical, it will explode, destroying the Fever Pot, everything in it, and everything on the ground in the 3x3 area around you, and do explosion damage to you. | ||
Line 7: | Line 9: | ||
''TODO: test the "Untested" ones on the table, summarize the main points here, and delete the table.'' | ''TODO: test the "Untested" ones on the table, summarize the main points here, and delete the table.'' | ||
* The base names of the items must match. There are no other requirements. | * The base names of the items must match. There are no other requirements. | ||
**Swords or shields at different levels cannot be mixed, even if they are in the same sword or shield family. | **Swords or shields at different levels cannot be mixed, even if they are in the same sword or shield family. | ||
**Blessings, curses, seals, upgrade value, tags, quantities in each stack, and staff charges do not affect the result. | **Blessings, curses, seals, upgrade value, tags, quantities in each stack, and staff charges do not affect the result. | ||
Line 66: | Line 68: | ||
https://shirenthewanderer.com/shiren5/guide/tips-and-tricks#fever-pots | https://shirenthewanderer.com/shiren5/guide/tips-and-tricks#fever-pots | ||
== Things to Watch Out for == | ==Things to Watch Out for== | ||
There are many ways things can go sideways. | There are many ways things can go sideways. | ||
* Beware using an item that isn't fully identified (e.g. yellow or green items). Note that items can occasionally be monsters in disguise, which can definitely cause Mixer recipes to fail, though it's not known if you can ever put one of these mimic-type monsters into a pot. Regardless, even if it's not a mimic-type monster, the item that isn't fully identified may differ in some way that matters that you can't see. Either don't use the item in a Fever Pot until you've fully identified it, or use it at your own peril. | * Beware using an item that isn't fully identified (e.g. yellow or green items). Note that items can occasionally be monsters in disguise, which can definitely cause Mixer recipes to fail, though it's not known if you can ever put one of these mimic-type monsters into a pot. Regardless, even if it's not a mimic-type monster, the item that isn't fully identified may differ in some way that matters that you can't see. Either don't use the item in a Fever Pot until you've fully identified it, or use it at your own peril. | ||
* All items created by the Fever Pot will be basic and unmodified. It will '''not''' replicate sword or shield runes or upgrade points. If you put a powerful item in a Fever Pot with extras you don't want to lose by mistake, you can still retrieve it via an Extraction Scroll or simply by breaking (and thus wasting) the Fever Pot. | * All items created by the Fever Pot will be basic and unmodified. It will '''not''' replicate sword or shield runes or upgrade points. If you put a powerful item in a Fever Pot with extras you don't want to lose by mistake, you can still retrieve it via an Extraction Scroll or simply by breaking (and thus wasting) the Fever Pot. | ||
* Make sure you have enough space on the ground around you for all the items to land safely. If you're using a maximum size 5 Fever Pot, 10 items will try to land around your feet, and if they cannot all land on open ground, some of them will be lost. | * Make sure you have enough space on the ground around you for all the items to land safely. If you're using a maximum size 5 Fever Pot, 10 items will try to land around your feet, and if they cannot all land on open ground, some of them will be lost. | ||
* Make sure there are no [[Draft:Shiren 5 | * Make sure there are no [[Draft:Shiren 5 2020:Traps|traps]] nearby. Items won't land on hidden traps, but if they can't land somewhere, they will be lost. Items *can* land on visible traps and trigger them, which can be even worse (e.g. explosion trap destroying lots or all of the items you're trying to replicate). Use a Blank Scroll as a Trap Deletion Scroll to clear out the area. | ||
* Don't insert things into a Fever Pot if there are any items on the ground that you care about in the 9 spaces around you. If you make a mistake, there will be an explosion effect and everything on the ground around you will be destroyed. This can be especially devastating if you like to use Fever Pots in your storage units surrounded by your most valuable loot rather than in dungeons. | * Don't insert things into a Fever Pot if there are any items on the ground that you care about in the 9 spaces around you. If you make a mistake, there will be an explosion effect and everything on the ground around you will be destroyed. This can be especially devastating if you like to use Fever Pots in your storage units surrounded by your most valuable loot rather than in dungeons. | ||
* Lucky Pot and the bracelet secret pot effect "Boosts # of items that can be carried" can both increase the capacity of your Fever Pots unexpectedly, which could make them harder to use. (It is easier to expand Fever Pots than to [[Draft:Shiren 5 | * Lucky Pot and the bracelet secret pot effect "Boosts # of items that can be carried" can both increase the capacity of your Fever Pots unexpectedly, which could make them harder to use. (It is easier to expand Fever Pots than to [[Draft:Shiren 5 2020:Fever Pots#Shrinking Fever Pots|shrink them]].) | ||
* Scoopies can destroy Fever Pots by filling them with Dirt. If the Fever Pot already had items in it, this will also cause an explosion, destroying the items inside and on the floor around you. Level 3 and 4 variants can throw dirt at you even when they're far away and not lined up with you. Some ways to protect your Fever Pots from Scoopies: | * Scoopies can destroy Fever Pots by filling them with Dirt. If the Fever Pot already had items in it, this will also cause an explosion, destroying the items inside and on the floor around you. Level 3 and 4 variants can throw dirt at you even when they're far away and not lined up with you. Some ways to protect your Fever Pots from Scoopies: | ||
** Put the Fever Pot on the ground. | ** Put the Fever Pot on the ground. | ||
Line 84: | Line 86: | ||
** Escape the dungeon immediately. Fever Pots are so valuable that it may be worth it to stop whatever else you are doing and ensure you take that Fever Pot home safely. | ** Escape the dungeon immediately. Fever Pots are so valuable that it may be worth it to stop whatever else you are doing and ensure you take that Fever Pot home safely. | ||
== Identifying Fever Pots == | ==Identifying Fever Pots== | ||
Fever Pots are much more common than usual in {{ | Fever Pots are much more common than usual in {{Shiren52020|Pitfall of Life}} and {{Shiren52020|Bizarre Tower}}, somewhat more common than usual in {{Shiren52020|Inori Cave}}. They are also available in many ''Shiren 5 Plus''-exclusive dungeons. | ||
Fever Pots are insert-type pots, not open-type pots. Fever Pots are always size 3 by default, but many other types of pots can be size 3 by default but they aren't always size 3 | Fever Pots are insert-type pots, not open-type pots. Fever Pots are always size 3 by default, but many other types of pots can be size 3 by default but they aren't always size 3 | ||
A Fever Pot has a buy / sell price of '''1,150 / 420''', unless it is blessed or sealed. It shares the price with other pots in the base 1,000 price tier: Sale Pot, Presto Pot, Black Hole Pot, Sticky Pot, Unbreakable Pot, and Floramorph Pot. Inserting any item into the pot will [[Draft:Shiren 5 | A Fever Pot has a buy / sell price of '''1,150 / 420''', unless it is blessed or sealed. It shares the price with other pots in the base 1,000 price tier: Sale Pot, Presto Pot, Black Hole Pot, Sticky Pot, Unbreakable Pot, and Floramorph Pot. Inserting any item into the pot will [[Draft:Shiren 5 2020:Identifying Items#Price check for Pots|identify all of these pots]] except for Unbreakable and Fever. | ||
== Farming Fever Pots == | ==Farming Fever Pots== | ||
There are several known ways with a reasonable probability of letting you farm a Fever Pot back to Nekomaneki Village. In order from requiring the most skill to requiring the least skill: | There are several known ways with a reasonable probability of letting you farm a Fever Pot back to Nekomaneki Village. In order from requiring the most skill to requiring the least skill: | ||
Line 100: | Line 102: | ||
'''Bizarre Tower''': Fever Pots can also be found more frequently than normal in Bizarre Tower, which is significantly easier to beat (and beat multiple times) than Pitfall of Life. If you save the pots mini-dungeons and monster house mini-dungeons for later in your overall run, you might have a better chance of finding a Fever Pot. (I've successfully farmed 2 Fever Pots in a single run using this technique.) | '''Bizarre Tower''': Fever Pots can also be found more frequently than normal in Bizarre Tower, which is significantly easier to beat (and beat multiple times) than Pitfall of Life. If you save the pots mini-dungeons and monster house mini-dungeons for later in your overall run, you might have a better chance of finding a Fever Pot. (I've successfully farmed 2 Fever Pots in a single run using this technique.) | ||
'''Pick-A-Choice shops in Inori Cave''': One relatively easy and reliable way to get Fever Pots is to grind in Inori Cave. You can take items into this dungeon, so take in very strong gear + emergency supplies as normal. Also take in at least 100K Gitan, a 5-spot Blessing Pot, a 5-spot Preservation Pot filled with blessed Collection Scrolls, and multiple 5-spot Preservation Pots filled with Extraction Scrolls or Blank Scrolls upon which you will later write Extraction. There is about a 1% chance of finding a Pick-A-Choice shop on any given floor of Inori Cave, so in a full 99F run, you may find one. Then, each time you play the Pick-A-Choice game, use a blessed Collection Scroll to get the item out safely rather than choosing a path. If the item isn't something you want, pay the shopkeeper to reset the game (he'll do this even though you moved the item with the Collection Scroll) or just destroy the item by throwing it up one of the Pick-A-Choice lanes. Then play the game again. Use your Blessing Pot to re-bless your unblessed Collection Scrolls, and use your Blank Scrolls as Extraction to extract the blessed Collection Scrolls from the Blessing Pot, and keep the cycle going. You can do this in multiple dungeons, and some dungeons have Pick-A-Choice shops more commonly than Inori Cave does, but there seems to be the highest chance to get Fever Pots out of Inori Cave. Item distribution differs by floor, but if the Pick-A-Choice shop happens to be on a good floor for Fever Pots (20F - 29F perhaps?), the chance of getting a Fever Pot seems to go as high as 2% - 5% for each time you play the game. (Besides {{ | '''Pick-A-Choice shops in Inori Cave''': One relatively easy and reliable way to get Fever Pots is to grind in Inori Cave. You can take items into this dungeon, so take in very strong gear + emergency supplies as normal. Also take in at least 100K Gitan, a 5-spot Blessing Pot, a 5-spot Preservation Pot filled with blessed Collection Scrolls, and multiple 5-spot Preservation Pots filled with Extraction Scrolls or Blank Scrolls upon which you will later write Extraction. There is about a 1% chance of finding a Pick-A-Choice shop on any given floor of Inori Cave, so in a full 99F run, you may find one. Then, each time you play the Pick-A-Choice game, use a blessed Collection Scroll to get the item out safely rather than choosing a path. If the item isn't something you want, pay the shopkeeper to reset the game (he'll do this even though you moved the item with the Collection Scroll) or just destroy the item by throwing it up one of the Pick-A-Choice lanes. Then play the game again. Use your Blessing Pot to re-bless your unblessed Collection Scrolls, and use your Blank Scrolls as Extraction to extract the blessed Collection Scrolls from the Blessing Pot, and keep the cycle going. You can do this in multiple dungeons, and some dungeons have Pick-A-Choice shops more commonly than Inori Cave does, but there seems to be the highest chance to get Fever Pots out of Inori Cave. Item distribution differs by floor, but if the Pick-A-Choice shop happens to be on a good floor for Fever Pots (20F - 29F perhaps?), the chance of getting a Fever Pot seems to go as high as 2% - 5% for each time you play the game. (Besides {{Shiren52020|Inori Cave}}, this trick also works well in Merchant's Hideout, {{Shiren52020|Lost Well}}, and *possibly* {{Shiren52020|Gorger's Manor}}.). This method is definitely a grind but if you take loads of Blank Scrolls in with you, you can often get multiple Fever Pots in a single run. (And you can occasionally get items that help extend the number of times you can play the Pick-A-Choice game as well, such as Blank Scrolls, Blessing Scrolls, and Blessing Pots.) You may also just randomly find Fever Pots for sale in regular shops and elite/VIP shops in Inori Cave. If you're going to be wandering around with Fever Pots in inventory, beware of dirt-throwing monsters. | ||
'''Abusable rescue passwords''': Rescue passwords remain usable forever, even if the player requesting rescue was rescued or gave up long ago. Because of this, players will sometimes deliberately die and request rescue by password to generate a password that everyone else in the community can use to reliably farm valuable items out of the run. (If you do this, you must die at least one floor beyond where the valuable loot can be found, as the last floor of a rescue run is randomized.) This (external) wiki page has several rescue passwords for Fever Pots along with details as to how to maximize the use of rescue passwords: https://shirenthewanderer.com/shiren5/guide/rescue-passwords . | '''Abusable rescue passwords''': Rescue passwords remain usable forever, even if the player requesting rescue was rescued or gave up long ago. Because of this, players will sometimes deliberately die and request rescue by password to generate a password that everyone else in the community can use to reliably farm valuable items out of the run. (If you do this, you must die at least one floor beyond where the valuable loot can be found, as the last floor of a rescue run is randomized.) This (external) wiki page has several rescue passwords for Fever Pots along with details as to how to maximize the use of rescue passwords: https://shirenthewanderer.com/shiren5/guide/rescue-passwords . | ||
Line 106: | Line 108: | ||
'''Lots game''': If you start with 100K and button mash for an hour on the lots game in the Hotel Nekomaneki basement, and sell everything you don't want when your inventory gets full, you will probably end up with one or more Fever Pots. | '''Lots game''': If you start with 100K and button mash for an hour on the lots game in the Hotel Nekomaneki basement, and sell everything you don't want when your inventory gets full, you will probably end up with one or more Fever Pots. | ||
'''Tanuki password''': One of the [[Draft:Shiren 5 | '''Tanuki password''': One of the [[Draft:Shiren 5 2020:Tanuki Passwords|Tanuki Passwords]] will give you a Fever Pot, though each password can only be used once per game diary. | ||
== Shrinking Fever Pots == | ==Shrinking Fever Pots== | ||
It can be useful to shrink your Fever Pots, so you only need 2 copies of a rare item to be able to replicate them. Fever Pots with capacity 0-1 will not break on their own or replicate items, but Fever Pots with capacity 2-5 will work as normal to replicate their identical contents. | It can be useful to shrink your Fever Pots, so you only need 2 copies of a rare item to be able to replicate them. Fever Pots with capacity 0-1 will not break on their own or replicate items, but Fever Pots with capacity 2-5 will work as normal to replicate their identical contents. | ||
You can shrink a Fever Pot by letting a [[Draft:Shiren 5 | You can shrink a Fever Pot by letting a [[Draft:Shiren 5 2020:Gyadon Family|Gyandora]] (green, level 3 variant) peck at your inventory. It may digest one of your pots, destroying any contents and leaving it with 0 capacity on the ground. (The level 4 variant also eats pots, but it can do dangerous things like erasing runes from your equipment.) Make sure you have strong armor without the Anti-Peck rune to survive long enough for it to peck all the pots you want it to peck, and don't have other pots you don't want pecked in your inventory. Once your Fever Pot(s) are shrunk, you can increase the capacity back up to 2 with Pot God / Blank Scrolls. | ||
One place Gyandora can be found naturally is Lost Well 10F during the daytime, but beware of putting items on the ground there, as that location also has Field Knaves. Alternatively, you can level up lower level Gyadon monsters found on Tower of Fortune 2F-3F. | One place Gyandora can be found naturally is Lost Well 10F during the daytime, but beware of putting items on the ground there, as that location also has Field Knaves. Alternatively, you can level up lower level Gyadon monsters found on Tower of Fortune 2F-3F. | ||
The method was discovered and documented by user ExNihilo on gamefaqs.com ([https://gamefaqs.gamespot.com/boards/106641-shiren-the-wanderer-the-tower-of-fortune-and-the-dice-of/78641478 link]). | The method was discovered and documented by user ExNihilo on gamefaqs.com ([https://gamefaqs.gamespot.com/boards/106641-shiren-the-wanderer-the-tower-of-fortune-and-the-dice-of/78641478 link]). | ||
[[Category:Shiren 5 Strategy Guides]] | [[Category:Shiren 5 2020 Strategy Guides]] |
Latest revision as of 18:21, 22 May 2025
This article is a draft relating to |
Fever Pots are some of the most valuable items. A Fever Pot can replicate other items except for pots, which makes them key if you want to do Crafting. Replicating items helps with Creating New Items and Mass Production. Players who aren't interested in crafting may be able to trade a Fever Pot for other powerful items with other players online.
Using Fever Pots
If you fill a Fever Pot with identical items, it will break open and twice as many of those items will spill onto the ground around you. If you insert 2+ items that are not identical, it will explode, destroying the Fever Pot, everything in it, and everything on the ground in the 3x3 area around you, and do explosion damage to you.
TODO: test the "Untested" ones on the table, summarize the main points here, and delete the table.
- The base names of the items must match. There are no other requirements.
- Swords or shields at different levels cannot be mixed, even if they are in the same sword or shield family.
- Blessings, curses, seals, upgrade value, tags, quantities in each stack, and staff charges do not affect the result.
- All resulting items will be newly generated.
- 3 stacks of Rocks (any quantity) will turn into 6 stacks, each with quantity like those randomly found on dungeon floors.
Possible Difference | Example | Outcome |
Rank | Wonder Pick (L1) and Wonder Wreckr (L8) | Explosion! |
Blessed/Cursed/Sealed modifier | 1 item is blessed, the rest aren't | Success! Resulting items have no blessing modifiers. |
Upgrade value | Gold Shield and Gold Shield +1 | Success! Resulting items have no upgrade values. |
Experience | 1 Onigiri Shield has 3 bars of experience, the rest have none | Success! Resulting items have no experience. |
Runes | 1 sword has runes, the rest don't | Success! Resulting items have no runes. |
Tag | 1 shield has a lost-and-found tag, the rest don't | Success! Resulting items have no tags. |
Price Tag | 1 item is for sale by a shopkeeper, the rest aren't | Untested. |
Charges | 1 Clone Staff has 5 charges, the rest have 3 | Success! Resulting items have the normal range of charges for newly found items of that type. |
Quantity | 1 item is 5x Rocks, the rest are 1x Rock | Success! Resulting items have the normal rage of quantity for newly found items of that type. |
Identification Level | 1 item is yellow, the rest are salmon? (fully identified) | Untested. See "Other Gotchas" below. |
New Items | A set of perfectly identical new items | Untested. |
Note: you can also use a Fever Pot to rewrite scrolls to be other types of scrolls by making them wet before replicating them. This (external) wiki page details the method: https://shirenthewanderer.com/shiren5/guide/tips-and-tricks#fever-pots
Things to Watch Out for
There are many ways things can go sideways.
- Beware using an item that isn't fully identified (e.g. yellow or green items). Note that items can occasionally be monsters in disguise, which can definitely cause Mixer recipes to fail, though it's not known if you can ever put one of these mimic-type monsters into a pot. Regardless, even if it's not a mimic-type monster, the item that isn't fully identified may differ in some way that matters that you can't see. Either don't use the item in a Fever Pot until you've fully identified it, or use it at your own peril.
- All items created by the Fever Pot will be basic and unmodified. It will not replicate sword or shield runes or upgrade points. If you put a powerful item in a Fever Pot with extras you don't want to lose by mistake, you can still retrieve it via an Extraction Scroll or simply by breaking (and thus wasting) the Fever Pot.
- Make sure you have enough space on the ground around you for all the items to land safely. If you're using a maximum size 5 Fever Pot, 10 items will try to land around your feet, and if they cannot all land on open ground, some of them will be lost.
- Make sure there are no traps nearby. Items won't land on hidden traps, but if they can't land somewhere, they will be lost. Items *can* land on visible traps and trigger them, which can be even worse (e.g. explosion trap destroying lots or all of the items you're trying to replicate). Use a Blank Scroll as a Trap Deletion Scroll to clear out the area.
- Don't insert things into a Fever Pot if there are any items on the ground that you care about in the 9 spaces around you. If you make a mistake, there will be an explosion effect and everything on the ground around you will be destroyed. This can be especially devastating if you like to use Fever Pots in your storage units surrounded by your most valuable loot rather than in dungeons.
- Lucky Pot and the bracelet secret pot effect "Boosts # of items that can be carried" can both increase the capacity of your Fever Pots unexpectedly, which could make them harder to use. (It is easier to expand Fever Pots than to shrink them.)
- Scoopies can destroy Fever Pots by filling them with Dirt. If the Fever Pot already had items in it, this will also cause an explosion, destroying the items inside and on the floor around you. Level 3 and 4 variants can throw dirt at you even when they're far away and not lined up with you. Some ways to protect your Fever Pots from Scoopies:
- Put the Fever Pot on the ground.
- Use a Dodger Pot. A Pot God Scroll lets you reuse an empty Dodger Pot.
- Throw an Extinction Scroll at a Scoopie to eliminate them from the entire dungeon. You can use a Blank Scroll as an Extinction Scroll.
- Seal your Fever Pot with a Curse Scroll, so dirt cannot be thrown into it.
- One secret pot bracelet effect increases your odds of dodging thrown items. But beware the new item bracelet effect "Items thrown at you will miss"! This effect actually corresponds to Inacc. Bracelet, and the description should read "Items thrown by you will miss".
- Escape the dungeon immediately. Fever Pots are so valuable that it may be worth it to stop whatever else you are doing and ensure you take that Fever Pot home safely.
Identifying Fever Pots
Fever Pots are much more common than usual in Pitfall of Life and Bizarre Tower, somewhat more common than usual in Inori Cave. They are also available in many Shiren 5 Plus-exclusive dungeons.
Fever Pots are insert-type pots, not open-type pots. Fever Pots are always size 3 by default, but many other types of pots can be size 3 by default but they aren't always size 3
A Fever Pot has a buy / sell price of 1,150 / 420, unless it is blessed or sealed. It shares the price with other pots in the base 1,000 price tier: Sale Pot, Presto Pot, Black Hole Pot, Sticky Pot, Unbreakable Pot, and Floramorph Pot. Inserting any item into the pot will identify all of these pots except for Unbreakable and Fever.
Farming Fever Pots
There are several known ways with a reasonable probability of letting you farm a Fever Pot back to Nekomaneki Village. In order from requiring the most skill to requiring the least skill:
Pitfall of Life: If you're a strong player, you can find Fever Pots much more frequently than usual in Pitfall of Life. You can't take items into Pitfall of Life, and while it's not the most difficult bonus dungeon by any stretch I wouldn't call it particularly easy, so farming items out is non-trivial. The goal floor starts at 25F which isn't so bad but becomes 99F after first victory. If you haven't beaten the dungeon yet, and you've found Fever Pots and a way to escape the dungeon, consider escaping, so you can replay the easier version of the dungeon to hopefully get more Fever Pots out again later. Else, you can play this dungeon as often as you want on the harder version and hope to both find 1+ Fever Pots and a means to escape, or beat the dungeon. (As a bonus, if you do manage to beat this dungeon, you get an incredibly rare and valuable True Knife, which you in turn may want to save up to replicate in a Fever Pot.)
Bizarre Tower: Fever Pots can also be found more frequently than normal in Bizarre Tower, which is significantly easier to beat (and beat multiple times) than Pitfall of Life. If you save the pots mini-dungeons and monster house mini-dungeons for later in your overall run, you might have a better chance of finding a Fever Pot. (I've successfully farmed 2 Fever Pots in a single run using this technique.)
Pick-A-Choice shops in Inori Cave: One relatively easy and reliable way to get Fever Pots is to grind in Inori Cave. You can take items into this dungeon, so take in very strong gear + emergency supplies as normal. Also take in at least 100K Gitan, a 5-spot Blessing Pot, a 5-spot Preservation Pot filled with blessed Collection Scrolls, and multiple 5-spot Preservation Pots filled with Extraction Scrolls or Blank Scrolls upon which you will later write Extraction. There is about a 1% chance of finding a Pick-A-Choice shop on any given floor of Inori Cave, so in a full 99F run, you may find one. Then, each time you play the Pick-A-Choice game, use a blessed Collection Scroll to get the item out safely rather than choosing a path. If the item isn't something you want, pay the shopkeeper to reset the game (he'll do this even though you moved the item with the Collection Scroll) or just destroy the item by throwing it up one of the Pick-A-Choice lanes. Then play the game again. Use your Blessing Pot to re-bless your unblessed Collection Scrolls, and use your Blank Scrolls as Extraction to extract the blessed Collection Scrolls from the Blessing Pot, and keep the cycle going. You can do this in multiple dungeons, and some dungeons have Pick-A-Choice shops more commonly than Inori Cave does, but there seems to be the highest chance to get Fever Pots out of Inori Cave. Item distribution differs by floor, but if the Pick-A-Choice shop happens to be on a good floor for Fever Pots (20F - 29F perhaps?), the chance of getting a Fever Pot seems to go as high as 2% - 5% for each time you play the game. (Besides Inori Cave, this trick also works well in Merchant's Hideout, Lost Well, and *possibly* Gorger's Manor.). This method is definitely a grind but if you take loads of Blank Scrolls in with you, you can often get multiple Fever Pots in a single run. (And you can occasionally get items that help extend the number of times you can play the Pick-A-Choice game as well, such as Blank Scrolls, Blessing Scrolls, and Blessing Pots.) You may also just randomly find Fever Pots for sale in regular shops and elite/VIP shops in Inori Cave. If you're going to be wandering around with Fever Pots in inventory, beware of dirt-throwing monsters.
Abusable rescue passwords: Rescue passwords remain usable forever, even if the player requesting rescue was rescued or gave up long ago. Because of this, players will sometimes deliberately die and request rescue by password to generate a password that everyone else in the community can use to reliably farm valuable items out of the run. (If you do this, you must die at least one floor beyond where the valuable loot can be found, as the last floor of a rescue run is randomized.) This (external) wiki page has several rescue passwords for Fever Pots along with details as to how to maximize the use of rescue passwords: https://shirenthewanderer.com/shiren5/guide/rescue-passwords .
Lots game: If you start with 100K and button mash for an hour on the lots game in the Hotel Nekomaneki basement, and sell everything you don't want when your inventory gets full, you will probably end up with one or more Fever Pots.
Tanuki password: One of the Tanuki Passwords will give you a Fever Pot, though each password can only be used once per game diary.
Shrinking Fever Pots
It can be useful to shrink your Fever Pots, so you only need 2 copies of a rare item to be able to replicate them. Fever Pots with capacity 0-1 will not break on their own or replicate items, but Fever Pots with capacity 2-5 will work as normal to replicate their identical contents.
You can shrink a Fever Pot by letting a Gyandora (green, level 3 variant) peck at your inventory. It may digest one of your pots, destroying any contents and leaving it with 0 capacity on the ground. (The level 4 variant also eats pots, but it can do dangerous things like erasing runes from your equipment.) Make sure you have strong armor without the Anti-Peck rune to survive long enough for it to peck all the pots you want it to peck, and don't have other pots you don't want pecked in your inventory. Once your Fever Pot(s) are shrunk, you can increase the capacity back up to 2 with Pot God / Blank Scrolls.
One place Gyandora can be found naturally is Lost Well 10F during the daytime, but beware of putting items on the ground there, as that location also has Field Knaves. Alternatively, you can level up lower level Gyadon monsters found on Tower of Fortune 2F-3F.
The method was discovered and documented by user ExNihilo on gamefaqs.com (link).