Ibh'Zan, Voice of Winter

Flying
Ibh'Zan enters the battlefield with three ice
counters on it.
At the end of your turn, remove an ice counter
from Ibh'Zan.
While there is an ice counter on Ibh'Zan, it
cannot attack, and has shroud and indestructible.
When Ibh'Zan attacks, destroy all other
creatures, then put three ice counters on
Ibh'Zan.