It's borderline impossible to complete the challenge without resorting to resetting until you can get a Cube of Meat or Ball of Bandages on the first floor. Thankfully, one of them is Rotten Baby, which scales with your damage, but other than that, you're gonna have a very hard time trying to damage enemies even a little bit. You're blindfolded, and your only means of damage are through three familiars. Have fun playing the entire game with exploding tears that boomerang right back in your face!
The Suicide King challenge in Rebirth.
