Sulfur 
Effects
- Upon activation, Isaac is turned into a demon and gains the effects of
Brimstone 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.
- This item belongs to the Leviathan set. Collecting three items from this set will transform Isaac into Leviathan.
Notes
- Sulfur functions identically to Brimstone. For a full list of interactions, see that page.
Synergies
4.5 Volt: Allows for repeated usage of Sulfur in one room.
Book of Virtues: Spawns red wisps that fire a short 
Car Battery: Activates twice to give an additional damage bonus and wider laser.