Sunyasa, Spirit of Storms

Flying
Sunyasa, Spirit of Storms has hexproof as long as
you control a snow land.
At the beginning of each upkeep, you may exile a
card from your hand until Sunyasa leaves the battlefield. If you do, it deals X damage divided
as you choose among any number of creatures
and you scry X, where X is the number of cards
exiled with Sunyasa.