Sulfur

Sulfur is an activated item added in The Binding of Isaac: Repentance.

Effects

 * Upon activation, Isaac is turned into a demon and gains the effects of for the current room.
 * If Sulfur has already been used in the current room, it instead gives Isaac +1.8 damage for the current room and increases the size of the laser.
 * Further uses of Sulfur will continue increasing Isaac's damage.

Synergies

 * : Allows for repeated usage of Sulfur in one room.
 * /: Activates twice to give an additional damage bonus and wider laser.

Trivia

 * Sulfur is the more direct translation of Brimstone.
 * Originally in Antibirth, due to a bug, using Sulfur twice in one room would permanently grant Brimstone to Isaac.