Creature - Human/Hatificer/Assassin Deathtouch <CR> Whenever another creature that has a hat enters the battlefield under your control or a hat sticker is put on a creature you control, each opponent loses 1 life.
Creature - Human/Hatificer/Assassin Deathtouch <CR> Whenever another creature you control that has a hat enters or a hat sticker is put on a creature you control, each opponent loses 1 life.
