Whenever Isaac deals damage to an enemy, has a chance to give the effect of one of Tainted ???'s unique poops.
Holds up one of the following types of poop, which he can throw with the fire buttons. All thrown poops deal 15 damage to enemies they hit when thrown (up to 3 times in the case of stone poop).
A normal Poop, the same as those found in any run.
Spawns a blue fly every two seconds. Each corn poop can have up to 3 blue flies out at a time.
When the player exits the room, up to 3 flies will automatically follow the player to the next room. However, if the corn poops are destroyed before exiting, all the freed blue flies will follow the player.
Leaves behind a fire that damages enemies and blocks enemy shots. The fire lasts 5 seconds and can block five shots and/or deal three ticks of contact damage before disappearing (the first hit will deal 16.5 damage, the second and third will deal 11).
Emits a toxic cloud that deals 3.5 damage per tick to nearby enemies (10.5 damage per second). If an explosion or fire hits the cloud, it also explodes, dealing 15 damage to anything caught in the blast. When the poop is destroyed, it spawns a larger green toxic cloud that can't explode and goes away after 5 seconds.
Continuously creates slowingblackcreep and, when destroyed, deals 10 damage to and confuses all enemies in the room. The poop will continue to create slowing creep even after it's destroyed.
Acts the same as a poop created by Hallowed Ground. Tainted ??? also gains the poop's effects while holding it.
Very resistant to damage and deals extra damage when thrown. It can hit multiple enemies when thrown, unlike all other poop types. It can stand several enemy hits, serving as a wall against bullets.
Explodes after 1.5 seconds even if Tainted ??? doesn't throw it. This bomb looks like a Butt Bomb, but will not have its unique effect. It will, however, use most of Tainted ???'s bomb synergies except for Mr. Mega, Rocket in a Jar, Ring Cap, and Short Fuse.
Deals 5 damage and poisons nearby enemies while pushing them and their bullets back and spawning a toxic cloud. If an explosion or fire hits the cloud, it also explodes, dealing 15 damage to anything caught in the blast. Reflected bullets can damage enemies, similarly to Butter Bean.
Drop 5 live bombs over time, similarly to the Explosive Diarrhea pill. These bombs will use Tainted ???'s bomb synergies.
Create a trail of brown creep that deals 1.5x Tainted ???'s damage to enemies per tick (15x Tainted ???'s damage per second). Standing on this creep gives Tainted ??? +1 damage, +1.5 tears fired per second, and other effects, depending on what's in contact with it. This creep persists indefinitely. When in contact with:
Black Poop: the creep also slows enemies and gives Tainted ??? slowing tears.
Toxic cloud from Stinky poop: the creep poisons enemies and gives Tainted ??? poison tears.
Flaming Poop: the creep burns enemies and gives Tainted ??? Fire Mind.
White Poop & its Aura: the creep grants homing and triples Tainted ???'s fire rate and damage.
Stone Poop: the creep will keep all the extra effects of other poops, even if they are destroyed.
The chance for IBS to activate is dependent on the damage Isaac deals to enemies; the more damage an attack deals, the more likely it is to activate IBS.
If Isaac holds a poop and enters a Pitfall, he will become invincible but can no longer move or shoot, similar to the effect of Gnawed Leaf. The bug will fix itself if the player exit then continue the run.