So first I gotta apologize for the missing 'trinket pool' pages. They are in the works an will be released as soon as possible. In the meantime you can find a list with the missing pools and their content here[pastebin.com]. Once they are released this link will lead to an imgur album so that you can easily access all of them at once.

Alright since the game is normally balanced around items a few things needed to be changed or removed:

Trinket pools;
- Every special rooms has it own unique trinket pool (see above) which the room pulls from when turning an item into a trinket. Every pool has a certain theme (ex. Boss pool contains stats and health related trinkets, while the Treasure pool contains tear effect and familiar trinkets)
- While Beggars have their own pool, all types of chests will spawn trinkets based on the room they are in.
- Certain bosses have their own specific trinket or trinket pool (Krampus, the Horsemen and the Angels)
- Mini Bosses share a trinket pool with the other bosses.

Restock Machines;
- While playing the challenge this mod allows you to reroll trinkets. Rerolling in shops works like it normally does, but in Treasure and Secret Rooms it is limited to 6 trinkets at a time, to not break the pools.
More than 6 trinkets will jam every Restock machine in the room (treasure and secret room). This can be reverted by removing trinkets out of the room.
- trinkets which get rerolled will turn into trinkets of the room's trinket pool.

Fortune Teller Machines:
- During this challenge Fortune Teller machines will be replaced by either a Soul Heart (85% chance) or by the Fragmented Card trinket (15%).

Devil Deals:
- Devil Deals now cost half a red heart due to trinkets not really being that good ( I sadly missed the chance to take Soul hearts into account. So in the future the 1 Soul Heart cost will be added. Not only make it more fair, but to add a little bit variety to it
- *Smelting* Judas Tongue will make all the trinkets in the devil deal free.
- The same goes for Credit Card

General changes:
- Filigree Feather now is a Shot Speed up which depends on how many 'Faith up' trinkets you have.
- Golden Horse Shoe will spawn an extra trinket in the item room. However in combination with Pay To Win it won't spawn a third trinket in the item room.
- Filigree Feather (angels), Faded Polaroid(?) and Store Credit(devil deal) can only be encountered in their respective pools

General removals:
- the Butter! trinket can not be encountered during the challenge. Should it spawn it will be rerolled to a random trinket
- the Karma will not appear due to the fact that there are no donation machines in the challenge
- the Perthro Rune will be turned into a random tarot or playing card due to the fact that some of the trinket pools are relativ small and making it possible to reroll everywhere could break certain pools