Coldsnap

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

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 ...

Reach (This creature can block creatures with flying.) Whenever Frostweb Spider blocks a creature with flying, put a +1/+1 counter on Frostweb Spid...

Trample Whenever Bull Aurochs attacks, it gets +1/+0 until end of turn for each other attacking Aurochs.

{S}: Boreal Centaur gets +1/+1 until end of turn. Activate this ability only once each turn. ({S} can be paid with one mana from a snow permanent.)

Trample When Aurochs Herd enters the battlefield, you may search your library for an Aurochs card, reveal it, and put it into your hand. If you do,...

{T}: Add {C}.

({T}: Add {W}.)

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...

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...

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.

{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.

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

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...

{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.

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...

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

{1}, Reveal X black cards from your hand, Sacrifice Martyr of Bones: Exile up to X target cards from a single graveyard.

{1}, Sacrifice a creature: You gain 2 life.