Acacia, the Forgotten

Acacia, the Forgotten enters with two memory counters on it.

{w},{t}: Put a memory counter on Acacia, the Forgotten. Activate only as a sorcery.

{b},{t}, Remove a memory counter from Acacia, the Forgotten: Destroy target creature or artifact. If this creature has no memory counters afterwards, exile it. Activate only as a sorcery.