Humpty, Nightmare of Dumpty

Indestructible
Great Fall— Whenever Humpty, Nightmare of
Dumpty is dealt noncombat damage, put that
many crack counters on it. Humpty,
Nightmare of Dumpty gets +X/+0 where X is
the number of crack counters on it.
Sacrifice Humpty, Nightmare of Dumpty:
Destroy all knights and nobles.