Mist Raven

Flying
When Mist Raven enters the battlefield, return target creature to its owner’s hand.

Kor Skyfisher

Flying
When Kor Skyfisher enters the battlefield, return a permanent you control to its owner’s hand.

Desecration Demon

Flying
At the beginning of each combat, any opponent may sacrifice a creature. If a player does, tap Desecration Demon and put a +1/+1 counter on it.

Niv-Mizzet, Dracogenius

Flying
Whenever Niv-Mizzet, Dracogenius deals damage to a player, you may draw a card.
: Niv-Mizzet, Dracogenius deals 1 damage to any target.

Extractor Demon

Flying
Whenever another creature leaves the battlefield, you may have target player mill two cards.
Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Wall of Denial

Defender, flying
Shroud (This creature can’t be the target of spells or abilities.)

Griselbrand

Flying, lifelink
Pay 7 life: Draw seven cards.

Sedraxis Specter

Flying
Whenever Sedraxis Specter deals combat damage to a player, that player discards a card.
Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Simic Sky Swallower

Flying, trample
Shroud (This creature can’t be the target of spells or abilities.)

Spire Monitor

Flash (You may cast this spell any time you could cast an instant.)
Flying

Falkenrath Aristocrat

Flying, haste
Sacrifice a creature: Falkenrath Aristocrat gains indestructible until end of turn. If the sacrificed creature was a Human, put a +1/+1 counter on Falkenrath Aristocrat.

Flickerwisp

Flying
When Flickerwisp enters the battlefield, exile another target permanent. Return that card to the battlefield under its owner’s control at the beginning of the next end step.

Heart of Kiran

Flying, vigilance
Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)
You may remove a loyalty counter from a planeswalker you control rather than pay Heart of Kiran’s crew cost.

Aethertide Whale

Flying
When Aethertide Whale enters the battlefield, you get (six energy counters).
Pay : Return Aethertide Whale to its owner’s hand.

Hope of Ghirapur

Flying
Sacrifice Hope of Ghirapur: Until your next turn, target player who was dealt combat damage by Hope of Ghirapur this turn can’t cast noncreature spells.

Herald of Anguish

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you’re done activating mana abilities pays for .)
Flying
At the beginning of your end step, each opponent discards a card.
, Sacrifice an artifact: Target creature gets -2/-2 until end of turn.

Freejam Regent

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you’re done activating mana abilities pays for .)
Flying
: Freejam Regent gets +2/+0 until end of turn.

Aethersphere Harvester

Flying
When Aethersphere Harvester enters the battlefield, you get (two energy counters).
Pay : Aethersphere Harvester gains lifelink until end of turn.
Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Exquisite Archangel

Flying
If you would lose the game, instead exile Exquisite Archangel and your life total becomes equal to your starting life total.

Heart of Kiran

Flying, vigilance
Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)
You may remove a loyalty counter from a planeswalker you control rather than pay Heart of Kiran’s crew cost.

Spire Patrol

Flying
When Spire Patrol enters the battlefield, tap target creature an opponent controls. That creature doesn’t untap during its controller’s next untap step.