Cheshire

Indestructable, Hexproof
Cheshire enters the battlefield with X +1/+1 counters for each snow permanent on the battlefield
When Cheshire enters the battlefield all permanents become snow permanents in addition to other types
{x}{s}{s}{s} each opponent player or each opponent creatures takes X damage, you draw X cards, gain X life, if more than 10 snow mana was used to cast this ability you win the game.