The Winter Vanguard

Begin the game with this card revealed.
Lands you control are also snow permanents and
untap on your 2nd turn after they are tapped.
{2} Sacrifice a land: Creatures deal no combat
damage this turn.
{3}{s}: Put an ice counter on target permanent.
Permanents with ice counters on them are snow.
Permanents with ice counters on them gain
shroud, and have Snow Landwalk.
Win: Eliminate a player with combat damage
but no lands.