Screams from Within in hand. Knight of Doves on the battlefield. You control a creature with toughness equal to 1. {B}{B} available.
Screams from Within in hand. Warehouse Tabby on the battlefield. You control another creature with toughness equal to 1. {B}{B} available.
All permanents on the battlefield. You control at least one other creature. Screams from Within attached to other creature.
All permanents on the battlefield. 2 extra zombie tokens. Screams from within attached to one of the extra zombies.