When Alpine Guide enters the battlefield, you may search your library for a Mountain card, put that card onto the battlefield tapped, then shuffle.

Alpine Guide attacks each combat if able.

When Alpine Guide leaves the battlefield, sacrifice a Mountain.

: 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 the battlefield, 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.)

: 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.

, : 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.)

Flying

: Frost Raptor gains shroud until end of turn. ( can be paid with one mana from a snow source. A creature with shroud can't be the target of spells or abilities.)

: 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.)

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

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

When Icebreaker Kraken enters the battlefield, 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.

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 enters the battlefield under your control, you may pay , , or . If you do, put a +1/+1 counter on Isu the Abominable.

Whenever Marit Lage's Slumber or another snow permanent enters the battlefield under your control, 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.

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.)

: Add one mana of any color.

At the beginning of your upkeep, put a night counter on Replicating Ring. Then if it has eight or more night counters on it, remove all of them and create eight colorless snow artifact tokens named Replicated Ring with ": Add one mana of any color."

Flying

: Tap target creature and put an ice counter on it. ( can be paid with one mana from a snow source.)

Creatures with ice counters on them don't untap during their controllers' untap steps.

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 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.)

Tundra Fumarole deals 4 damage to target creature or planeswalker. Add for each spent to cast this spell. Until end of turn, you don't lose this mana as steps and phases end. ( is mana from a snow source.)