Flying

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

Return six target nonland permanents to their owners' hands.

{T}: Untap target artifact or creature.

Morph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

{T}: Add {C}.

{1}, {T}: Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.

When Archaeomancer enters the battlefield, return target instant or sorcery card from your graveyard to your hand.

{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.

{3}, Sacrifice Burnished Hart: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

As Caged Sun enters the battlefield, choose a color.

Creatures you control of the chosen color get +1/+1.

Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.

Return target creature to its owner's hand.

Awaken 3--{4}{U} (If you cast this spell for {4}{U}, also put three +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.)

Coldsteel Heart enters the battlefield tapped.

As Coldsteel Heart enters the battlefield, choose a color.

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

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

Counter target spell.

Counter target spell unless its controller pays {1} for each card in your graveyard.

Cycling {2} ({2}, Discard this card: Draw a card.)

No more than two creatures can attack you each combat.

Tap target creature. It doesn't untap during its controller's next untap step.

Draw a card.

Return target nonland permanent you don't control to its owner's hand.

Overload {6}{U} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Dark Depths enters 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.

Counter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.)

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Return target creature to its owner's hand.

Draw a card.

Whenever you cast a creature spell, you may pay {1}. If you do, return target creature to its owner's hand.

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

Imprint -- When Extraplanar Lens enters the battlefield, you may exile target land you control.

Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.

{T}: You may tap or untap another target permanent.

Unearth {U} ({U}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Draw a card for each Island you control.

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.)

Whenever Frost Titan becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {2}.

Whenever Frost Titan enters the battlefield or attacks, tap target permanent. It doesn't untap during its controller's next untap step.

Artifacts, creatures, and lands your opponents control enter the battlefield tapped.

Enchant creature

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

When enchanted creature is dealt damage, destroy it.

As Gauntlet of Power enters the battlefield, choose a color.

Creatures of the chosen color get +1/+1.

Whenever a basic land is tapped for mana of the chosen color, its controller adds an additional one mana of that color.

Cumulative upkeep--Pay 2 life. (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.)

When Glacial Chasm enters the battlefield, sacrifice a land.

Creatures you control can't attack.

Prevent all damage that would be dealt to you.

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

Enchant creature

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

When enchanted creature becomes the target of a spell or ability, destroy Ice Cage.

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.

Iceberg enters the battlefield with X ice counters on it.

{3}: Put an ice counter on Iceberg.

Remove an ice counter from Iceberg: Add {C}.

{1}, {T}: Tap target artifact, creature, or land.

When Icy Prison enters the battlefield, exile target creature.

At the beginning of your upkeep, sacrifice Icy Prison unless any player pays {3}.

When Icy Prison leaves the battlefield, return the exiled card to the battlefield under its owner's control.

Whenever an ability of equipped creature is activated, if it isn't a mana ability, copy that ability. You may choose new targets for the copy.

Equip {3}

Imprint -- When Isochron Scepter enters, you may exile an instant card with mana value 2 or less from your hand.

{2}, {T}: You may copy the exiled card. If you do, you may cast the copy without paying its mana cost.

+1: Scry 1, then draw a card.

-2: Return target creature to its owner's hand.

-8: You get an emblem with "Whenever an opponent casts their first spell each turn, counter that spell."

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.

You have no maximum hand size.

If an effect causes you to discard a card, discard it, but you may put it on top of your library instead of into your graveyard.

{2}, Reveal X blue cards from your hand, Sacrifice Martyr of Frost: Counter target spell unless its controller pays {X}.

{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

{T}: Add {U}.

{U}, {T}: Untap target legendary permanent.

{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.)

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}.

If an opponent had a green creature enter the battlefield under their control this turn, you may pay {U} rather than pay this spell's mana cost.

Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.

Look at the top three cards of your library, then put them back in any order. You may shuffle.

Draw a card.

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Enchant permanent

Vanishing 3 (This Aura enters the battlefield with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)

When Reality Acid leaves the battlefield, enchanted permanent's controller sacrifices it.

Return target instant or sorcery card from your graveyard to your hand.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

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.

Tap target creature. It doesn't untap during its controller's next untap step.

Awaken 3--{4}{U} (If you cast this spell for {4}{U}, also put three +1/+1 counters on target land you control and it becomes a 0/0 Elemental creature with haste. It's still a land.)

Blue spells you cast cost {1} less to cast.

Tap all creatures target player controls. Those creatures don't untap during that player's next untap step.

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.

({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 {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 {U}.)

({T}: Add {U}.)

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

When Solemn Simulacrum enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

When Solemn Simulacrum dies, you may draw a card.

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

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control.)

Equip {1}

+1: Tap target permanent. It doesn't untap during its controller's next untap step.

-2: Draw a card for each tapped creature target player controls.

-8: You get an emblem with "You have no maximum hand size" and "Whenever a card is put into your graveyard from anywhere, you may return it to your hand."

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

Thawing Glaciers enters the battlefield tapped.

{1}, {T}: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Return Thawing Glaciers to its owner's hand at the beginning of the next cleanup step.

{T}: Add {C}.

{2}, {T}: Thespian's Stage becomes a copy of target land, except it has this ability.

Defender

Thing in the Ice enters the battlefield with four ice counters on it.

Whenever you cast an instant or sorcery spell, remove an ice counter from Thing in the Ice. Then if it has no ice counters on it, transform it.

When this creature transforms into Awoken Horror, return all non-Horror creatures to their owners' hands.

Return target spell or creature to its owner's hand.

You may have Vesuva enter the battlefield tapped as a copy of any land on the battlefield.

Emerge {6}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)

When you cast this spell, you may return target instant or sorcery card from your graveyard to your hand.

Defender

Whenever Wall of Frost blocks a creature, that creature doesn't untap during its controller's next untap step.

Whenever a creature an opponent controls becomes the target of a spell or ability you control, gain control of that creature for as long as you control Willbreaker.

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.

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.

Wintermoon Mesa enters the battlefield tapped.

{T}: Add {C}.

{2}, {T}, Sacrifice Wintermoon Mesa: Tap two target lands.