Carrier Pigeons

Flying
When Carrier Pigeons enters, draw a card at the beginning of the next turn’s upkeep.

Phantasmal Sphere

Flying
At the beginning of your upkeep, put a +1/+1 counter on Phantasmal Sphere, then sacrifice Phantasmal Sphere unless you pay for each +1/+1 counter on it.
When Phantasmal Sphere leaves the battlefield, target opponent creates an X/X blue Orb creature token with flying, where X is the number of +1/+1 counters on Phantasmal Sphere.

Swamp Mosquito

Flying
Whenever Swamp Mosquito attacks and isn’t blocked, defending player gets a poison counter. (A player with ten or more poison counters loses the game.)

Wild Aesthir

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

Rogue Skycaptain

Flying
At the beginning of your upkeep, put a wage counter on Rogue Skycaptain. You may pay for each wage counter on it. If you don’t, remove all wage counters from Rogue Skycaptain and an opponent gains control of it.

Baron Sengir

Flying
Whenever a creature dealt damage by Baron Sengir this turn dies, put a +2/+2 counter on Baron Sengir.
: Regenerate another target Vampire.

Giant Albatross

Flying
When Giant Albatross dies, you may pay . If you do, for each creature that dealt damage to Giant Albatross this turn, destroy that creature unless its controller pays 2 life. A creature destroyed this way can’t be regenerated.

Sengir Bats

Flying
Whenever a creature dealt damage by Sengir Bats this turn dies, put a +1/+1 counter on Sengir Bats.

Sengir Bats

Flying
Whenever a creature dealt damage by Sengir Bats this turn dies, put a +1/+1 counter on Sengir Bats.

Roterothopter

Flying
: Roterothopter gets +1/+0 until end of turn. Activate no more than twice each turn.

Giant Albatross

Flying
When Giant Albatross dies, you may pay . If you do, for each creature that dealt damage to Giant Albatross this turn, destroy that creature unless its controller pays 2 life. A creature destroyed this way can’t be regenerated.

Faerie Noble

Flying
Other Faerie creatures you control get +0/+1.
: Other Faerie creatures you control get +1/+0 until end of turn.

Mesa Falcon

Flying
: Mesa Falcon gets +0/+1 until end of turn.

Mesa Falcon

Flying
: Mesa Falcon gets +0/+1 until end of turn.

Serra Angel

Flying
Vigilance (Attacking doesn’t cause this creature to tap.)

Palladia-Mors

Flying, trample
At the beginning of your upkeep, sacrifice Palladia-Mors unless you pay .

Chromium

Flying
Rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)
At the beginning of your upkeep, sacrifice Chromium unless you pay .

Xira Arien

Flying
, : Target player draws a card.