Demon Slayer is a buff inflicted permanently after consuming Bill's Soul.
It gives the player the following bonuses:
- +10% melee speed
- +20 armor penetration
- 25% chance not to consume ammo
- Increases max amount of minions and sentries by 1
- A chance to release additional throwing projectiles
The player will also receive immunity to the following 19 debuffs:
- Mana Sickness
- On Fire!
- Broken Armor
- Cursed Inferno
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