Coldsnap

{2}, Reveal X blue cards from your hand, Sacrifice this creature: Counter target spell unless its controller pays {X}.

{1}, Reveal X white cards from your hand, Sacrifice this creature: You gain three times X life.

{1}, Reveal X green cards from your hand, Sacrifice this creature: Target creature gets +X/+X until end of turn.

Whenever this creature deals combat damage to a creature, destroy that creature at end of combat. Whenever this creature deals combat damage to a p...

{2}{S}: Target snow creature gains first strike until end of turn. ({S} can be paid with one mana from a snow source.)

{T}, Sacrifice a creature: This creature deals 1 damage to any target.

Trample While you're searching your library, you may cast this card from your library.

Flying; fear (This creature can't be blocked except by artifact creatures and/or black creatures.) Cumulative upkeep {B} (At the beginning of your ...

This creature doesn't untap during your untap step. {1}{S}: Untap this creature. ({S} can be paid with one mana from a snow source.)

This creature attacks each combat if able. {1}{S}: This creature gets +1/+0 until end of turn. ({S} can be paid with one mana from a snow source.)

Cumulative upkeep—Sacrifice a creature. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay it...

{S}: Regenerate this creature. ({S} can be paid with one mana from a snow source.)

Flying Rimefeather Owl's power and toughness are each equal to the number of snow permanents on the battlefield. {1}{S}: Put an ice counter on targ...

Trample Whenever this creature attacks, it gets +1/+0 until end of turn for each other attacking Aurochs. {2}{S}: Target creature blocks target cre...

Flying {2}{S}: Tap target creature and put an ice counter on it. ({S} can be paid with one mana from a snow source.) Creatures with ice counters on...

{1}, {T}: You may tap or untap target permanent. Activate only if you control four or more snow permanents.

{1}, {T}: Counter target activated ability. Activate only if you control four or more snow permanents. (Mana abilities can't be targeted.)

Protection from snow Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay...

This creature can't attack unless defending player controls a snow land. When you control no snow lands, sacrifice this creature.

Sacrifice this creature: Destroy target enchantment.

Whenever another nontoken creature you control dies, create a 3/1 black and red Graveborn creature token with haste.

Trample Cumulative upkeep—Put a +1/+1 counter on a creature an opponent controls. (At the beginning of your upkeep, put an age counter on this perm...

Discard a land card: This creature gets +1/+1 until end of turn.

Flying {W}, {T}: Tap target creature.