Monster Slayer

Whenever a creature an opponent controls with converted mana cost 6 or more dies, each other player may draw a card and create a colorless Treasure artifact token with "{t}, Sacrifice this artifact: Add one mana of any color." and gain 1 life. Then draw a card for every player that drew a card this way.
Win: You win when all the evil roles are killed.
Lose: You lose by normal means.