Coldsnap

Cumulative upkeep—Add {R}. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost...

Target attacking creature gets +X/+0 until end of turn. Draw a card at the beginning of the next turn's upkeep.

Snow landwalk (This creature can't be blocked as long as defending player controls a snow land.) {S}: Regenerate Zombie Musher. ({S} can be paid w...

Trample If another creature would die, exile it instead. Put a card exiled with Void Maw into its owner's graveyard: Void Maw gets +2/+2 until en...

Flying Prevent all damage that would be dealt to Tresserhorn Skyknight by creatures with first strike.

Ripple 4 (When you cast this spell, you may reveal the top four cards of your library. You may cast spells with the same name as this spell from am...

When Stalking Yeti enters the battlefield, if it's on the battlefield, it deals damage equal to its power to target creature an opponent controls a...

Skred deals damage to target creature equal to the number of snow permanents you control.

Add {R}{R}, then add {R} for each card named Rite of Flame in each graveyard.

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 ...

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

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

{2}, Reveal X red cards from your hand, Sacrifice Martyr of Ashes: Martyr of Ashes deals X damage to each creature without flying.

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

Each creature that's a Barbarian, a Warrior, or a Berserker gets +2/+2 and has haste.

Cumulative upkeep {W} or {U} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep co...

Lightning Storm deals X damage to any target, where X is 3 plus the number of charge counters on Lightning Storm. Discard a land card: Put two char...

Trample, haste Lightning Serpent enters the battlefield with X +1/+0 counters on it. At the beginning of the end step, sacrifice Lightning Serpent.

Whenever Karplusan Wolverine becomes blocked, you may have it deal 1 damage to any target.

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

Destroy target artifact or land. Recover {R}{R} (When a creature is put into your graveyard from the battlefield, you may pay {R}{R}. If you do, re...

Greater Stone Spirit can't be blocked by creatures with flying. {2}{R}: Until end of turn, target creature gets +0/+2 and gains "{R}: This creatur...

{T}: Target creature can't block this turn. {S}: Goblin Rimerunner gains haste until end of turn. ({S} can be paid with one mana from a snow source.)

Prevent all damage that Goblin Furrier would deal to snow creatures.