Thomas, the Rage Demon

Bite: Whenever Thomas, the Rage Demon is
the target of a spell or ability, Thomas deals 4 damage to its controller.
Claw Slash: When Thomas, the Rage Demon enters the battlefield, create a knife token
with”{t} Turn this artifact into a Treasure token.” unless you control 4 knife tokens.
Tail Swish: When Thomas, the Rage Demon attacks, he gains vigilance and deathtouch until end of turn.