The Oven

The Oven enters the battlefield with 6 Oven
counters on it.
{3}{t}: Remove 1 Oven counter from the Oven.
Any player may activate this ability.
{g}{g}{g}{g}{g}: Sacrifice a creature. If you do, put 6
Oven counters on the Oven.
When there are no oven counters left on the oven,
the player controlling the oven sacrifices all
creatures he controls.