Metathran Aerostat

Flying
: You may put a creature card with converted mana cost X from your hand onto the battlefield. If you do, return Metathran Aerostat to its owner’s hand.

Crosis, the Purger

Flying
Whenever Crosis, the Purger deals combat damage to a player, you may pay . If you do, choose a color, then that player reveals their hand and discards all cards of that color.

Tower Drake

Flying
: Tower Drake gets +0/+1 until end of turn.

Blazing Specter

Flying, haste
Whenever Blazing Specter deals combat damage to a player, that player discards a card.

Dromar, the Banisher

Flying
Whenever Dromar, the Banisher deals combat damage to a player, you may pay . If you do, choose a color, then return all creatures of that color to their owners’ hands.

Rainbow Crow

Flying
: Rainbow Crow becomes the color of your choice until end of turn.

Tolarian Emissary

Kicker (You may pay an additional as you cast this spell.)
Flying
When Tolarian Emissary enters the battlefield, if it was kicked, destroy target enchantment.

Razorfoot Griffin

Flying (This creature can’t be blocked except by creatures with flying or reach.)
First strike (This creature deals combat damage before creatures without first strike.)

Urborg Drake

Flying
Urborg Drake attacks each combat if able.

Devouring Strossus

Flying, trample
At the beginning of your upkeep, sacrifice a creature.
Sacrifice a creature: Regenerate Devouring Strossus.

Dream Thrush

Flying
: Target land becomes the basic land type of your choice until end of turn.

Shivan Dragon

Flying (This creature can’t be blocked except by creatures with flying or reach.)
: Shivan Dragon gets +1/+0 until end of turn.

Fallen Angel

Flying
Sacrifice a creature: Fallen Angel gets +2/+1 until end of turn.

Sengir Vampire

Flying (This creature can’t be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by Sengir Vampire this turn dies, put a +1/+1 counter on Sengir Vampire.

Skittering Skirge

Flying
When you cast a creature spell, sacrifice Skittering Skirge.

Cloud Elemental

Flying
Cloud Elemental can block only creatures with flying.

Wayward Soul

Flying
: Put Wayward Soul on top of its owner’s library.

Fog Elemental

Flying (This creature can’t be blocked except by creatures with flying or reach.)
When Fog Elemental attacks or blocks, sacrifice it at end of combat.

Mahamoti Djinn

Flying (This creature can’t be blocked except by creatures with flying or reach.)

Cloud Djinn

Flying
Cloud Djinn can block only creatures with flying.

Clockwork Avian

Flying
Clockwork Avian enters the battlefield with four +1/+0 counters on it.
At end of combat, if Clockwork Avian attacked or blocked this combat, remove a +1/+0 counter from it.
, : Put up to X +1/+0 counters on Clockwork Avian. This ability can’t cause the total number of +1/+0 counters on Clockwork Avian to be greater than four. Activate this ability only during your upkeep.