Skarrgan Firebird

Bloodthirst 3 (If an opponent was dealt damage this turn, this creature enters the battlefield with three +1/+1 counters on it.)
Flying
: Return Skarrgan Firebird from your graveyard to your hand. Activate this ability only if an opponent was dealt damage this turn.

Skymark Roc

Flying
Whenever Skymark Roc attacks, you may return target creature defending player controls with toughness 2 or less to its owner’s hand.

Trygon Predator

Flying
Whenever Trygon Predator deals combat damage to a player, you may destroy target artifact or enchantment that player controls.

Skeletal Vampire

Flying
When Skeletal Vampire enters the battlefield, create two 1/1 black Bat creature tokens with flying.
, Sacrifice a Bat: Create two 1/1 black Bat creature tokens with flying.
Sacrifice a Bat: Regenerate Skeletal Vampire.

Angel of Despair

Flying
When Angel of Despair enters the battlefield, destroy target permanent.

Sphinx of Foresight

You may reveal this card from your opening hand. If you do, scry 3 at the beginning of your first upkeep.
Flying
At the beginning of your upkeep, scry 1.

Senate Courier

Flying
: Senate Courier gains vigilance until end of turn.

Windstorm Drake

Flying
Other creatures you control with flying get +1/+0.

Rakdos, the Showstopper

Flying, trample
When Rakdos, the Showstopper enters the battlefield, flip a coin for each creature that isn’t a Demon, Devil, or Imp. Destroy each creature whose coin comes up tails.

Syndicate Messenger

Flying
Afterlife 1 (When this creature dies, create a 1/1 white and black Spirit creature token with flying.)

Spawn of Mayhem

Spectacle (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)
Flying, trample
At the beginning of your upkeep, Spawn of Mayhem deals 1 damage to each player. Then if you have 10 or less life, put a +1/+1 counter on Spawn of Mayhem.

Seraph of the Scales

Flying
: Seraph of the Scales gains vigilance until end of turn.
: Seraph of the Scales gains deathtouch until end of turn.
Afterlife 2 (When this creature dies, create two 1/1 white and black Spirit creature tokens with flying.)

Sphinx of Foresight

You may reveal this card from your opening hand. If you do, scry 3 at the beginning of your first upkeep.
Flying
At the beginning of your upkeep, scry 1.

Seraph of the Scales

Flying
: Seraph of the Scales gains vigilance until end of turn.
: Seraph of the Scales gains deathtouch until end of turn.
Afterlife 2 (When this creature dies, create two 1/1 white and black Spirit creature tokens with flying.)

Seraph of the Scales

Flying
: Seraph of the Scales gains vigilance until end of turn.
: Seraph of the Scales gains deathtouch until end of turn.
Afterlife 2 (When this creature dies, create two 1/1 white and black Spirit creature tokens with flying.)

Hydroid Krasis

When you cast this spell, you gain half X life and draw half X cards. Round down each time.
Flying, trample
Hydroid Krasis enters the battlefield with X +1/+1 counters on it.

Senate Griffin

Flying
When Senate Griffin enters the battlefield, scry 1.

The Haunt of Hightower

Flying, lifelink
Whenever The Haunt of Hightower attacks, defending player discards a card.
Whenever a card is put into an opponent’s graveyard from anywhere, put a +1/+1 counter on The Haunt of Hightower.

Archway Angel

Flying
When Archway Angel enters the battlefield, you gain 2 life for each Gate you control.

Sphinx of New Prahv

Flying, vigilance
Spells your opponents cast that target Sphinx of New Prahv cost more to cast.

Grasping Thrull

Flying
When Grasping Thrull enters the battlefield, it deals 2 damage to each opponent and you gain 2 life.