Jangar, Claws of the Avalanche

Jangar, Claws of the Avalanche's power and toughness are each equal to the number of snow permanents you control.
Whenever a snow permanent you control deals damage to a creature an opponent controls, that creature's base power becomes 0 until the beginning of its controller's next upkeep.
{2}{s}: Target snow creature you control gains first strike until end of turn.