Trample

Abominable Treefolk's power and toughness are each equal to the number of snow permanents you control.

When Abominable Treefolk enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

Flying

: Target creature loses flying until end of turn. ( can be paid with one mana from a snow source.)

(: Add or .)

Alpine Meadow enters tapped.

(: Add or .)

Arctic Treeline enters tapped.

: Ascendant Spirit becomes a Spirit Warrior with base power and toughness 2/3.

: If Ascendant Spirit is a Warrior, put a flying counter on it and it becomes a Spirit Warrior Angel with base power and toughness 4/4.

: If Ascendant Spirit is an Angel, put two +1/+1 counters on it and it gains "Whenever this creature deals combat damage to a player, draw a card."

When Berg Strider enters, tap target artifact or creature an opponent controls. If was spent to cast this spell, that permanent doesn't untap during its controller's next untap step. ( is mana from a snow source.)

Choose target creature you control and target creature you don't control. If you control three or more snow permanents, the creature you control gets +1/+0 and gains indestructible until end of turn. Then those creatures fight each other. (Each deals damage equal to its power to the other.)

Flash

Flying

When Blizzard Strix enters, if you control another snow permanent, exile target permanent other than Blizzard Strix. Return that card to the battlefield under its owner's control at the beginning of the next end step.

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

Flying

: Boreal Griffin gains first strike until end of turn. ( can be paid with one mana from a snow source.)

Boreal Shelf enters tapped.

: Add or .

: Monstrosity 2. (If this creature isn't monstrous, put two +1/+1 counters on it and it becomes monstrous. can be paid with one mana from a snow source.)

As long as Chillerpillar is monstrous, it has flying.

Coldsteel Heart enters tapped.

As Coldsteel Heart enters, choose a color.

: Add one mana of the chosen color.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it. can be paid with one mana from a snow source.)

If a creature would deal combat damage to you and/or one or more creatures you control, prevent X of that damage, where X is the number of age counters on Cover of Winter.

: Put an age counter on Cover of Winter.

Flying

: Snow creatures you control get +1/+1 until end of turn. ( can be paid with one mana from a snow source.)

If a nontoken creature an opponent controls would die, exile that card with an ice counter on it instead.

You may cast spells from among cards in exile your opponents own with ice counters on them, and you may spend mana from snow sources as though it were mana of any color to cast those spells.

, : Look at the top card of your library. If it's a snow card, you may reveal it and put it into your hand. ( can be paid with one mana from a snow source.)

Frost Marsh enters tapped.

: Add or .

: Frostpeak Yeti can't be blocked this turn. ( can be paid with one mana from a snow source.)

: Frostwalla gets +2/+2 until end of turn. Activate only once each turn. ( can be paid with one mana from a snow source.)

Enchant creature

Enchanted creature can't block, and its activated abilities can't be activated.

: Enchanted creature gains defender until end of turn. ( can be paid with one mana from a snow source.)

Enchant creature

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it. can be paid with one mana from a snow source.)

Enchanted creature gets +3/+3 for each age counter on Glacial Plating.

: Target creature can't block this turn.

: Goblin Rimerunner gains haste until end of turn. ( can be paid with one mana from a snow source.)

: Grim Draugr gets +1/+0 and gains menace until end of turn. (It can't be blocked except by two or more creatures. can be paid with one mana from a snow source.)

Flying, trample

: Hailstorm Valkyrie gets +2/+2 until end of turn. ( can be paid with one mana from a snow source.)

Highland Weald enters tapped.

: Add or .

Whenever another snow permanent you control enters, you may have target player mill two cards.

This spell costs less to cast for each snow land you control.

When Icebreaker Kraken enters, artifacts and creatures target opponent controls don't untap during that player's next untap step.

Return three snow lands you control to their owner's hand: Return Icebreaker Kraken to its owner's hand.

( can be paid with one mana from a snow source.)

You may look at the top card of your library any time.

You may play snow lands and cast snow spells from the top of your library.

Whenever another snow permanent you control enters, you may pay , , or . If you do, put a +1/+1 counter on Isu the Abominable.

: You may play target snow permanent card from your graveyard this turn. If you do, it enters tapped.

Whenever Marit Lage's Slumber or another snow permanent you control enters, scry 1.

At the beginning of your upkeep, if you control ten or more snow permanents, sacrifice Marit Lage's Slumber. If you do, create Marit Lage, a legendary 20/20 black Avatar creature token with flying and indestructible.

: Add .

, , Sacrifice Mouth of Ronom: It deals 4 damage to target creature. ( can be paid with one mana from a snow source.)

Attacking creatures you control have deathtouch.

Whenever a creature you control deals combat damage to a player, draw a card.

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

Phyrexian Ironfoot doesn't untap during your untap step.

: Untap Phyrexian Ironfoot. ( 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 its upkeep cost for each age counter on it.)

, Sacrifice Priest of the Haunted Edge: Target creature gets -X/-X until end of turn, where X is the number of snow lands you control. Activate only as a sorcery.

: Untap another target snow permanent.

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

Trample

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

: Target creature blocks target creature this turn if able. ( can be paid with one mana from a snow source.)

(: Add or .)

Rimewood Falls enters tapped.

Saddled Rimestag gets +2/+2 as long as you had another creature enter the battlefield under your control this turn.

: Untap target snow land.

Shimmerdrift Vale enters tapped.

As Shimmerdrift Vale enters, choose a color.

: Add one mana of the chosen color.

: Add .

When Spirit of the Aldergard enters, search your library for a snow land card, reveal it, put it into your hand, then shuffle.

Spirit of the Aldergard gets +1/+0 for each other snow permanent you control.

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

: Return Stalking Yeti to its owner's hand. Activate only as a sorcery. ( can be paid with one mana from a snow source.)