Name:Gangrenous Zombies
ManaCost:1 B B
Types:Creature Zombie
PT:2/2
A:AB$ DamageAll | Cost$ T Sac<1/CARDNAME> | ValidCards$ Creature | ValidPlayers$ Player | NumDmg$ X | References$ X,Y | ValidDescription$ each creature and each player. | SpellDescription$ CARDNAME deals 1 damage to each creature and each player. If you control a snow Swamp, CARDNAME deals 2 damage to each creature and each player instead.
SVar:X:Count$Compare Y EQ0.1.2
SVar:Y:Count$Valid Swamp.Snow+YouCtrl
SVar:RemAIDeck:True
SVar:Picture:http://www.wizards.com/global/images/magic/general/gangrenous_zombies.jpg
Oracle:{T}, Sacrifice Gangrenous Zombies: Gangrenous Zombies deals 1 damage to each creature and each player. If you control a snow Swamp, Gangrenous Zombies deals 2 damage to each creature and each player instead.