Crush Underfoot

Tribal Instant - Giant

Choose a Giant creature you control. It deals damage equal to its power to target creature.

Five-toed grave
-Kithkin phrase meaning
"a giant's footprint"

Crib Swap

Tribal Instant - Shapeshifter

Changeling (This card is every creature type at all times.)

Exile target creature. Its controller puts a 1/1 colorless Shapeshifter creature token with changeling onto the battlefield.

Cover of Winter

Snow Enchantment

Cumulative upkeep {S} (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. {S} can be paid with one mana from a snow permanent.)

If a creature would deal combat damage to you and/or one or more creatures you control, prevent X of that damage, where X is the number of age counters on Cover of Winter.

{S}: Put an age counter on Cover of Winter.

Coldsteel Heart

Snow Artifact

Coldsteel Heart enters the battlefield tapped.

As Coldsteel Heart enters the battlefield, choose a color.

: Add one mana of the chosen color to your mana pool.

The Phyrexian death machine awoke, its coldsteel heart imbuing it with sinister new power.

Chilling Shade

Snow Creature - Shade

Flying

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

Rimewind necromancers caught travelers in mystical blizzards then trapped their spirits in the mist of their final frozen breaths.

Centaur Omenreader

Snow Creature - Centaur Shaman

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

The wisdom of the omenreaders is legendary. Creatures travel for miles through icy peril to seek their counsel.

Boreal Griffin

Snow Creature - Griffin

Flying

{S}: Boreal Griffin gains first strike until end of turn. ({S} can be paid with one mana from a snow permanent.)

"More than snow falls from the Boreal skies."
-Arkin Egilsson, skycaptain

Boreal Druid

Snow Creature - Elf Druid

: Add to your mana pool.

Some creatures are bound to the cold by Rimewind magic. Others seek it out, adapted by two thousand years of the Ice. The Boreal, where Heidar's frigid sway is strongest, is home to both.

Boreal Centaur

Snow Creature - Centaur Warrior

{S}: Boreal Centaur gets +1/+1 until end of turn. Activate this ability only once each turn. ({S} can be paid with one mana from a snow permanent.)

Those who used reindeer as beasts of burden knew to avoid the centaurs, who raged at the enslavement of their spirit-kin.

Blizzard Specter

Snow Creature - Specter

Flying

Whenever Blizzard Specter deals combat damage to a player, choose one - That player returns a permanent he or she controls to its owner's hand; or that player discards a card.

Blades of Velis Vel

Tribal Instant - Shapeshifter

Changeling (This card is every creature type at all times.)

Up to two target creatures each get +2/+0 and gain all creature types until end of turn.

"The changing kind suffers as we do. We must join as one to quench our tyrants!"

Adarkar Windform

Snow Creature - Illusion

Flying

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

Terisiare has only two kinds of weather: cold and weird.

Adarkar Valkyrie

Snow Creature - Angel

Flying, vigilance

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

She doesn't escort the dead to the afterlife, but instead raises them to fight and die again.

Basic Land - Forest