Frost Bite

Frost Bite deals 2 damage to target creature or planeswalker. If you control three or more snow permanents, it deals 3 damage instead.

Snow-Covered Mountain

Into the North

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

Kird Ape

Kird Ape gets +1/+2 as long as you control a Forest.

Wild Nacatl

Wild Nacatl gets +1/+1 as long as you control a Mountain.
Wild Nacatl gets +1/+1 as long as you control a Plains.

Skred

Skred deals damage to target creature equal to the number of snow permanents you control.

Snow-Covered Plains

Snow-Covered Forest

Highland Forest

({T}: Add {R} or {G}.)
Highland Forest enters tapped.

Qasali Pridemage

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)
{1}, Sacrifice Qasali Pridemage: Destroy target artifact or enchantment.

Alpine Meadow

({T}: Add {R} or {W}.)
Alpine Meadow enters tapped.

Arctic Treeline

({T}: Add {G} or {W}.)
Arctic Treeline enters tapped.