Has no effect on spawning coins in Greed mode, including the trapdoor/exit room.
Losing this item while holding more than 99 coins will reduce coin count to 99. Picking it back up again (if playing asTainted Isaac, for example) will not restore lost coins.
Synergies[ | ]
A Dollar: Allows Isaac to gain the full 100 coins when picking this up.
Greed's Gullet: After exceeding 100 coins, Isaac gains an extra Heart Container for every 100 coins instead of every 25.
Keeper/Tainted Keeper: The limit of 12 heart containers can be bypassed, allowing for up to 15 coin hearts at 999 coins. Additional coin hearts past 12 are not displayed.
Money = Power: Increases maximum damage bonus. The damage caps at +39.96 damage with 999 coins.
Midas' Touch: Increases maximum contact damage. The damage caps at 203.3 damage with 999 coins.