Vinogk, The Snow Starter

Hexproof, flying, defender
When snow permenant you control tapped, tap
target permanent you don't control. It doesn't
untap during its controller's untap step until
Vinogk, The Snow Starter leave battlefield.
Tapped permenant you don't control lost all abilities.
Vinogk, The Snow Starter lose defender if you
control more than 8 snow permenant