Coldsnap

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...

Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for ...

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

At the beginning of each end step, each player gains control of all nontoken permanents they own.

{T}: Add {C}.

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

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

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

You may exile two green cards from your hand rather than pay this spell's mana cost. Allosaurus Rider's power and toughness are each equal to 1 pl...

{S}: Thermopod gains haste until end of turn. ({S} can be paid with one mana from a snow source.) Sacrifice a creature: Add {R}.

Flying, first strike Whenever Kjeldoran Gargoyle deals damage, you gain that much life.

Flying, vigilance {T}: When target creature other than Adarkar Valkyrie dies this turn, return that card to the battlefield under your control.

Flying, indestructible

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

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

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

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 ...

You may exile two red cards from your hand rather than pay this spell's mana cost. Untap all creatures that attacked this turn. After this main pha...

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.

You may exile two black cards from your hand rather than pay this spell's mana cost. Soul Spike deals 4 damage to any target and you gain 4 life.

Flying Cumulative upkeep—Gain control of a land you don't control. (At the beginning of your upkeep, put an age counter on this permanent, then sac...

Other Soldier creatures get +1/+1 and have first strike. (They deal combat damage before creatures without first strike.)