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

: Whiptongue Frog gains flying until end of turn.

Reach
When Whiptongue Hydra enters the battlefield, destroy all creatures with flying. Put a +1/+1 counter on Whiptongue Hydra for each creature destroyed this way.

When Whirler Rogue enters the battlefield, create two 1/1 colorless Thopter artifact creature tokens with flying.
Tap two untapped artifacts you control: Target creature can't be blocked this turn.

When Whirler Virtuoso enters the battlefield, you get (three energy counters).
Pay : Create a 1/1 colorless Thopter artifact creature token with flying.

, : Create a 1/1 colorless Thopter artifact creature token with flying.

, Exile the top two cards of your library: Whirling Catapult deals 1 damage to each creature with flying and each player.

Flying
When Whirlpool Drake enters the battlefield, shuffle the cards from your hand into your library, then draw that many cards.
When Whirlpool Drake dies, shuffle the cards from your hand into your library, then draw that many cards.

Destroy all creatures with flying.

Flying
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
Whenever Whispering Specter deals combat damage to a player, you may sacrifice it. If you do, that player discards a card for each poison counter they have.

Protection from black
: White Shield Crusader gains flying until end of turn.
: White Shield Crusader gets +1/+0 until end of turn.

All creatures lose flying until end of turn.
Sacrifice a snow land: Return Whiteout from your graveyard to your hand.

Flying, first strike
: Wild Aesthir gets +2/+0 until end of turn. Activate this ability only once each turn.

Flying

Flying (This creature can't be blocked except by creatures with flying or reach.)
: Regenerate Will-o'-the-Wisp. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

Flying

Flying
: Target creature gains flying until end of turn.

Flying

One or two target creatures gain flying until end of turn.

Attacking creatures with flying get -2/-2 and lose flying until end of turn.