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, vigilance

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

{T}: Draw three cards.

{2}{U}{U}: Return Arcanis the Omnipotent to its owner's hand.

Arctic Flats enters the battlefield tapped.

{T}: Add {G} or {W}.

{2}, {T}: Target creature gains vigilance until end of turn. Activate only during combat and only if defending player controls a snow land.

{2}, {T}: Target snow land is no longer snow.

{2}, {T}: Target nonsnow basic land becomes snow.

{T}: Add {C}.

Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

{1}, {T}: Add {W}{U}.

{U}, {T}: Target snow land becomes a 2/2 blue Elemental creature with flying. It's still a land.

{T}: Add {C}.

{1}, {T}, Sacrifice Bant Panorama: Search your library for a basic Forest, Plains, or Island card, put it onto the battlefield tapped, then shuffle.

Whenever a creature enters the battlefield this turn, you may draw a card.

Fuse (You may cast one or both halves of this card from your hand.)

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Create four 1/1 white Bird creature tokens with flying.

Fuse (You may cast one or both halves of this card from your hand.)

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

{1}{U}, {T}: Creatures your opponents control attack this turn if able.

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.

Boreal Shelf enters the battlefield tapped.

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

As long as Centaur Omenreader is tapped, creature spells you cast cost {2} less to cast.

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

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.

Enchant player

Whenever enchanted player is attacked, you draw a card. Each opponent attacking that player does the same.

Flying

Whenever Derevi, Empyrial Tactician enters the battlefield or a creature you control deals combat damage to a player, you may tap or untap target permanent.

{1}{G}{W}{U}: Put Derevi onto the battlefield from the command zone.

Desert of the Indomitable enters the battlefield tapped.

{T}: Add {G}.

Cycling {1}{G} ({1}{G}, Discard this card: Draw a card.)

Desert of the Mindful enters the battlefield tapped.

{T}: Add {U}.

Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.)

Desert of the True enters the battlefield tapped.

{T}: Add {W}.

Cycling {1}{W} ({1}{W}, Discard this card: Draw a card.)

Flying

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

Flying

{T}: Exchange control of two target nonlegendary creatures. You can't activate this ability during combat.

Whenever a creature deals combat damage to one of your opponents, its controller may draw a card.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Enchant land

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

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

Whenever a creature you control attacks alone, if it's the first combat phase of the turn, untap that creature. After this phase, there is an additional combat phase.

Whenever a permanent becomes tapped, put a wind counter on it.

If a permanent with a wind counter on it would untap during its controller's untap step, remove all wind counters from it instead.

{T}: Add {C}.

{1}{S}: Until end of turn, Frostwalk Bastion becomes a 2/3 Construct artifact creature. It's still a land. ({S} can be paid with one mana from a snow source.)

Whenever Frostwalk Bastion deals combat damage to a creature, tap that creature and it doesn't untap during its controller's next untap step.

Enchant creature

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

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

Destroy target permanent. Its controller creates a 3/3 green Elephant creature token.

Enchant land

When Gift of Paradise enters the battlefield, you gain 3 life.

Enchanted land has "{T}: Add two mana of any one color."

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.

Halimar Depths enters the battlefield tapped.

When Halimar Depths enters the battlefield, look at the top three cards of your library, then put them back in any order.

{T}: Add {U}.

{2}, {T}: Return target permanent to its owner's hand. Activate only if you control four or more snow permanents.

You may choose not to untap Ice Floe during your untap step.

{T}: Tap target creature without flying that's attacking you. It doesn't untap during its controller's untap step for as long as Ice Floe remains tapped.

Enchant artifact or creature

Enchanted permanent doesn't untap during its controller's untap step.

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 a creature with power 4 or greater enters the battlefield under your control, draw a card.

-1: Untap target permanent.

Krosan Verge enters the battlefield tapped.

{T}: Add {C}.

{2}, {T}, Sacrifice Krosan Verge: Search your library for a Forest card and a Plains card, put them onto the battlefield tapped, then shuffle.

If Leyline of Anticipation is in your opening hand, you may begin the game with it on the battlefield.

You may cast spells as though they had flash.

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.

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 each age counter on it.)

Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

New Benalia enters the battlefield tapped.

When New Benalia enters the battlefield, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

{T}: Add {W}.

Enchant land

When New Horizons enters the battlefield, put a +1/+1 counter on target creature you control.

Enchanted land has "{T}: Add two mana of any one color."

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.

Enchant snow land you control

When On Thin Ice enters the battlefield, exile target creature an opponent controls until On Thin Ice leaves the battlefield.

Flying

When Peregrine Drake enters the battlefield, untap up to five lands.

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.)

Whenever you cast your first spell each turn, reveal the top card of your library. You may cast it without paying its mana cost if it's a spell with lesser mana value. If you don't cast it, put it into your hand.

{T}: Put a charge counter on Ratchet Bomb.

{T}, Sacrifice Ratchet Bomb: Destroy each nonland permanent with mana value equal to the number of charge counters on Ratchet Bomb.

You have no maximum hand size.

{T}: Add {C}.

{T}: Untap another target snow permanent.

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.

{1}, {T}: You may tap or untap target permanent. Activate only if you control four or more snow permanents.

{T}: Add {C}.

{4}, {T}: Target creature can't be blocked this turn.

{1}, {T}: Add {G}{W}.

{1}, {T}: Add {G}{U}.

Enchant creature

Enchanted creature has flying.

Enchanted creature has first strike as long as it's blocking and you control a snow land.

({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 {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

Enchant creature

Enchanted creature gets -X/-Y. If that creature is attacking, X is the number of snow lands defending player controls. Otherwise, X is the number of snow lands its controller controls. Y is equal to X or to enchanted creature's toughness minus 1, whichever is smaller.

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

Draw cards equal to the power of target creature you control.

{2}, Sacrifice a snow land: Prevent all combat damage that would be dealt this turn.

Create X 1/1 green Saproling creature tokens.

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Search your library for a multicolored card, reveal it, put it into your hand, then shuffle.

{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

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

I, II -- Tap target creature an opponent controls. It doesn't untap during its controller's untap step for as long as you control Time of Ice.

III -- Return all tapped creatures to their owners' hands.

Counter target noncreature spell. Untap up to three lands.

Enchant Forest

As Utopia Sprawl enters the battlefield, choose a color.

Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.

Return all creatures to their owners' hands except for Krakens, Leviathans, Octopuses, and Serpents.

Flying

Whenever a creature with flying attacks, you may draw a card.

Exile target creature you don't control. For each creature exiled this way, its controller searches their library for a basic land card. Those players put those cards onto the battlefield tapped, then shuffle.

Overload {4}{W}{W} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")

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.

When Zhalfirin Void enters the battlefield, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

{T}: Add {C}.