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

{1}, {T}: Return target creature you control and each Aura attached to it to their owners' hands. Activate only during your turn.

Defender (This creature can't attack.) {1}: Snow Fortress gets +1/+0 until end of turn. {1}: Snow Fortress gets +0/+1 until end of turn. {3}: Snow Fortress deals 1 damage to target creature without flying that's attacking you.

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

{1}, {T}: Untap target artifact.

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.)

{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."

{2}: Target snow land you control becomes a 4/4 Elemental creature with hexproof and haste until end of turn. It's still a land. (A creature with hexproof can't be the target of spells or abilities your opponents control.)

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.)

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.

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.)

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

{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.

Trample {3}{G}: Conifer Wurm gets +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.)

{S}: Frostwalla gets +2/+2 until end of turn. Activate only once each 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.

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

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.

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}{S}: Icehide Troll gets +2/+0 and gains indestructible until end of turn. Tap it. (Damage and effects that say "destroy" don't destroy it. {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.

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.)

{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.

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}: Counter target activated ability. Activate only if you control four or more snow permanents. (Mana abilities can't be targeted.)

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

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.

Whenever you cast a creature spell that doesn't share a creature type with a creature you control or a creature card in your graveyard, copy that spell. (A copy of a creature spell becomes a token.)

Coldsteel Heart enters the battlefield tapped. As Coldsteel Heart enters the battlefield, choose a color. {T}: Add one mana of the chosen color.

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.

{T}: Add {C}. {S}{S}{S}: Faceless Haven becomes a 4/3 creature with vigilance and all creature types until end of turn. It's still a land. ({S} can be paid with one mana from a snow source.)

Frost Marsh enters the battlefield tapped. {T}: Add {U} or {B}.

{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.

As Heraldic Banner enters the battlefield, choose a color. Creatures you control of the chosen color get +1/+0. {T}: Add one mana of the chosen color.

({T}: Add {U} or {B}.) Ice Tunnel enters the battlefield tapped.

Mistvault Bridge enters the battlefield tapped. Indestructible {T}: Add {U} or {B}.

{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.)

Opulent Palace enters the battlefield tapped. {T}: Add {B}, {G}, or {U}.

{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}: Add {G} or {U}.) Rimewood Falls enters the battlefield tapped.

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

{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.)

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 {U}.)

({T}: Add {B}.)

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

Thornwood Falls enters the battlefield tapped. When Thornwood Falls enters the battlefield, you gain 1 life. {T}: Add {G} or {U}.

Witherbloom Campus enters the battlefield tapped. {T}: Add {B} or {G}. {4}, {T}: Scry 1.

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

Indestructible As long as your devotion to green and blue is less than seven, Kruphix isn't a creature. You have no maximum hand size. If you would lose unspent mana, that mana becomes colorless instead.

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.

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.)

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.)

Destroy target nonsnow creature.

Counter target noncreature spell. Its controller loses 2 life.

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

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Destroy target artifact or enchantment.

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.

Until end of turn, each creature target player controls loses all abilities and becomes a blue Frog with base power and toughness 1/1.

Destroy target artifact and target enchantment.

Target opponent exiles the top X cards of their library. You may cast any number of spells with mana value X or less from among them without paying their mana costs.

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.

Return target permanent to its owner's hand. Return target permanent card from your graveyard to your hand.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Destroy target nonland permanent an opponent controls. II — Search your library for a Forest card, put it onto the battlefield tapped, then shuffle. III — Creatures you control gain deathtouch until end of turn.

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.

Enchant creature When Colossification enters the battlefield, tap enchanted creature. Enchanted creature gets +20/+20.

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.

At the beginning of combat on your turn, choose one — • Creatures you control get +1/+1 and gain trample until end of turn. • Target land gains "{T}: Add {G}{G}{G}" until end of turn. • Draw a card if you control a creature with power 3 or greater. • You gain 3 life.

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.)

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 you pay Hibernation's End's cumulative upkeep, you may search your library for a creature card with mana value equal to the number of age counters on Hibernation's End, put it onto the battlefield, then shuffle.

If {U}{B} was spent to cast this spell, search your library for a card, put that card into your graveyard, then shuffle. Return up to two permanent cards from your graveyard to your hand.

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.)