Trample

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

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

Flying

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

{T}: Add one mana of any color in your commander's color identity.

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

When Arcum's Astrolabe enters the battlefield, draw a card.

{1}, {T}: Add one mana of any color.

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

{S}{S}{S}: 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.

{S}{S}{S}{S}: 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 {S} was spent to cast this spell, that permanent doesn't untap during its controller's next untap step. ({S} is mana from a snow source.)

Distribute X +1/+1 counters among any number of creatures you control, where X is the amount of {S} spent to cast this spell. Then draw a card for each creature you control with power 4 or greater.

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.)

Flying

Whenever Blizzard Specter deals combat damage to a player, choose one --

• That player returns a permanent they control to its owner's hand.

• That player discards a card.

Flash

Flying

When Blizzard Strix enters the battlefield, 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.

Choose one --

• Destroy all creatures.

• Destroy all planeswalkers.

Then return a creature or planeswalker card with mana value X or less from your graveyard to the battlefield, where X is the amount of {S} spent to cast this spell. ({S} is mana from a snow source.)

{T}: Add {C}.

Whenever you cast a creature spell, if {S} of any of that spell's colors was spent to cast it, that creature enters the battlefield with an additional +1/+1 counter on it. ({S} is mana from a snow source.)

Destroy target nonsnow creature.

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

As long as Chillerpillar is monstrous, it has flying.

Flying

{S}: Chilling Shade gets +1/+1 until end of turn. ({S} can be paid with one mana from a snow source.)

Coldsteel Heart enters the battlefield tapped.

As Coldsteel Heart enters the battlefield, choose a color.

{T}: Add one mana of the chosen color.

You may play lands from your graveyard.

{T}: Choose target nonland permanent card in your graveyard. If you haven't cast a spell this turn, you may cast that card. If you do, you can't cast additional spells this turn. Activate only as a sorcery.

Roll a d20.

1--9 | Tap all creatures your opponents control.

10--19 | Tap all creatures your opponents control. Those creatures don't untap during their controllers' next untap steps.

20 | Tap all creatures your opponents control. Those creatures don't untap during their controllers' next untap steps. Until your next turn, creatures your opponents control enter the battlefield tapped.

Trample

{3}{G}: Conifer Wurm gets +X/+X until end of turn, where X is the number of snow permanents you control.

Counter target spell.

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

Dark Depths enters the battlefield with ten ice counters on it.

{3}: Remove an ice counter from Dark Depths.

When Dark Depths has no ice counters on it, sacrifice it. If you do, create Marit Lage, a legendary 20/20 black Avatar creature token with flying and indestructible.

All nonsnow creatures get -X/-X until end of turn, where X is the number of snow permanents you control.

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.

Defender (This creature can't attack.)

Drift of the Dead's power and toughness are each equal to the number of snow lands you control.

{S}, {T}: Look at the top card of your library. If it's a snow card, you may reveal it and put it into your hand. ({S} can be paid with one mana from a snow source.)

Frost Marsh enters the battlefield tapped.

{T}: Add {U} or {B}.

Flying

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

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

Reach (This creature can block creatures with flying.)

Whenever Frostweb Spider blocks a creature with flying, put a +1/+1 counter on Frostweb Spider at end of combat.

Reveal the top six cards of your library. You may put any number of snow permanent cards from among them into your hand. Put the rest into your graveyard.

Enchant land

Enchanted land is snow.

Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color.

Scry X, where X is the amount of {S} spent to cast this spell, then draw three cards. ({S} is mana from a snow source.)

Flying, trample

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

({T}: Add {U} or {B}.)

Ice Tunnel enters the battlefield tapped.

Flash

Flying

When Ice-Fang Coatl enters the battlefield, draw a card.

Ice-Fang Coatl has deathtouch as long as you control at least three other snow permanents.

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

{S}, {T}: Tap target artifact or creature. ({S} can be paid with one mana from a snow source.)

This spell costs {1} 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.

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

Search your library for a snow land card, put it onto the battlefield tapped, then shuffle.

Whenever Jorn attacks, untap each snow permanent you control.

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

Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

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.

Changeling (This card is every creature type.)

You may have Moritte of the Frost enter the battlefield as a copy of a permanent you control, except it's legendary and snow in addition to its other types and, if it's a creature, it enters with two additional +1/+1 counters on it and has changeling.

{T}: Add {C}.

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

Other snow and Zombie creatures you control get +1/+1.

{S}{S}{S}: Return Narfi, Betrayer King from your graveyard to the battlefield tapped. ({S} 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.

Whenever Ohran Viper deals combat damage to a creature, destroy that creature at end of combat.

Whenever Ohran Viper deals combat damage to a player, you may draw a card.

X can't be greater than the number of players in the game.

Reveal cards from the top of your library until you reveal X land cards. Put those land cards onto the battlefield tapped and the rest on the bottom of your library in a random order.

Phyrexian Snowcrusher attacks each combat if able.

{1}{S}: Phyrexian Snowcrusher gets +1/+0 until end of turn. ({S} can be paid with one mana from a snow source.)

Flying

{S}, {T}: Draw a card, then discard a card. ({S} can be paid with one mana from a snow source.)

{T}, 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.

{T}: 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 "{T}: Add one mana of any color."

{T}: Untap another target snow permanent.

Enchant creature

Enchanted creature gets +2/+1 and has "{S}: This creature can't be blocked this turn except by snow creatures." ({S} can be paid with one mana from a snow source.)

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

Flying

Rimefeather Owl's power and toughness are each equal to the number of snow permanents on the battlefield.

{1}{S}: Put an ice counter on target permanent.

Permanents with ice counters on them are snow.

({T}: Add {G} or {U}.)

Rimewood Falls enters the battlefield tapped.

Ronom Serpent can't attack unless defending player controls a snow land.

When you control no snow lands, sacrifice Ronom Serpent.

{T}: Add {C}.

{1}{S}, {T}: Look at the top card of your library. If that card is snow, you may reveal it and put it into your hand. ({S} can be paid with one mana from a snow source.)

{T}: Untap target snow land.

Shimmerdrift Vale enters the battlefield tapped.

As Shimmerdrift Vale enters the battlefield, choose a color.

{T}: Add one mana of the chosen color.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

({T}: Add {B}.)

{T}: Add {C}{C}.

When Spirit of the Aldergard enters the battlefield, 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.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I -- Mill three cards.

II -- Return up to two target snow permanent cards from your graveyard to your hand.

III -- Choose three cards in each graveyard. Their owners shuffle those cards into their libraries.

Choose one --

• Target nonsnow permanent becomes snow until end of turn.

• Target snow permanent isn't snow until end of turn.

Draw a card at the beginning of the next turn's upkeep.

At the beginning of your end step, untap all lands you control.

Cast this spell only during combat before blockers are declared.

X can't be greater than the number of snow lands you control.

Choose X target attacking creatures. For each of those creatures, its controller may pay {1} or {2}. If that player doesn't, destroy that creature at end of combat. If that player pays only {1}, prevent all combat damage that would be dealt to and dealt by that creature this combat.

Enchant creature

When Winter's Rest enters the battlefield, tap enchanted creature.

As long as you control another snow permanent, enchanted creature doesn't untap during its controller's untap step.

At the beginning of the end step, if no creatures are on the battlefield, sacrifice Withering Wisps.

{B}: Withering Wisps deals 1 damage to each creature and each player. Activate no more times each turn than the number of snow Swamps you control.

({T}: Add {B} or {G}.)

Woodland Chasm enters the battlefield tapped.

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 with one mana from a snow source.)