Walker, the Cheese Lord

When Walker, the Cheese Lord enters the battlefield, attacks, or blocks, create a cheese
token (It's an artifact with {1},{t}: Sacrifice this
artifact. Target creature gets +2/+2 until end of turn).
Stinky Cheese Fart - Sacrifice three or more
cheeses. Creatures your opponents control get
-X/-X until end of turn, where X is the number
of cheese tokens sacrificed this way. Activate this
ability only on your turn.