: Look at the top card of your library.
: Reveal the top card of your library. If it's a land card, Callous Deceiver gets +1/+0 and gains flying until end of turn. Activate this ability only once each turn.

: Look at the top card of your library.
: Reveal the top card of your library. If it's a land card, Callous Deceiver gets +1/+0 and gains flying until end of turn. Activate this ability only once each turn.

, : Counter target spell unless its controller pays .
Channel — , Discard Ghost-Lit Warder: Counter target spell unless its controller pays .

, : Counter target spell unless its controller pays .
Channel — , Discard Ghost-Lit Warder: Counter target spell unless its controller pays .

, Sacrifice a creature: You gain 2 life.

, Sacrifice a creature: You gain 2 life.

: Search your library for a card, put that card into your hand, then shuffle your library.

: Search your library for a card, put that card into your hand, then shuffle your library.

: Search your library for a card, put that card into your hand, then shuffle your library.

: Search your library for a card, put that card into your hand, then shuffle your library.

At the beginning of your upkeep, you may have target creature you control get +X/+X until end of turn, where X is the number of creatures you control. If you do, sacrifice that creature at the beginning of the next end step.

At the beginning of your upkeep, you may have target creature you control get +X/+X until end of turn, where X is the number of creatures you control. If you do, sacrifice that creature at the beginning of the next end step.

When Kiri-Onna enters the battlefield, return target creature to its owner's hand.
Whenever you cast a Spirit or Arcane spell, you may return Kiri-Onna to its owner's hand.

When Kiri-Onna enters the battlefield, return target creature to its owner's hand.
Whenever you cast a Spirit or Arcane spell, you may return Kiri-Onna to its owner's hand.

Flying
Rimefeather Owl's power and toughness are each equal to the number of snow permanents on the battlefield.
: Put an ice counter on target permanent.
Permanents with ice counters on them are snow.

Flying
Rimefeather Owl's power and toughness are each equal to the number of snow permanents on the battlefield.
: Put an ice counter on target permanent.
Permanents with ice counters on them are snow.