Nebelgast Herald

Flash (You may cast this spell any time you could cast an instant.)
Flying
Whenever Nebelgast Herald or another Spirit enters the battlefield under your control, tap target creature an opponent controls.

Mirrorwing Dragon

Flying
Whenever a player casts an instant or sorcery spell that targets only Mirrorwing Dragon, that player copies that spell for each other creature they control that the spell could target. Each copy targets a different one of those creatures.

Spell Queller

Flash
Flying
When Spell Queller enters the battlefield, exile target spell with converted mana cost 4 or less.
When Spell Queller leaves the battlefield, the exiled card’s owner may cast that card without paying its mana cost.

Spell Queller

Flash
Flying
When Spell Queller enters the battlefield, exile target spell with converted mana cost 4 or less.
When Spell Queller leaves the battlefield, the exiled card’s owner may cast that card without paying its mana cost.

Selfless Spirit

Flying
Sacrifice Selfless Spirit: Creatures you control gain indestructible until end of turn.

Selfless Spirit

Flying
Sacrifice Selfless Spirit: Creatures you control gain indestructible until end of turn.

Wretched Gryff

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature’s converted mana cost.)
When you cast this spell, draw a card.
Flying

Gisela, the Broken Blade

Flying, first strike, lifelink
At the beginning of your end step, if you both own and control Gisela, the Broken Blade and a creature named Bruna, the Fading Light, exile them, then meld them into Brisela, Voice of Nightmares.

Advanced Stitchwing

Flying
, Discard two cards: Return Advanced Stitchwing from your graveyard to the battlefield tapped.

Voldaren Pariah // Abolisher of Bloodlines

Flying
Sacrifice three other creatures: Transform Voldaren Pariah.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Bruna, the Fading Light

When you cast this spell, you may return target Angel or Human creature card from your graveyard to the battlefield.
Flying, vigilance
(Melds with Gisela, the Broken Blade.)

Brisela, Voice of Nightmares

Flying, first strike, vigilance, lifelink
Your opponents can’t cast spells with converted mana cost 3 or less.

Subjugator Angel

Flying
When Subjugator Angel enters the battlefield, tap all creatures your opponents control.

Mirrorwing Dragon

Flying
Whenever a player casts an instant or sorcery spell that targets only Mirrorwing Dragon, that player copies that spell for each other creature they control that the spell could target. Each copy targets a different one of those creatures.

Voldaren Pariah // Abolisher of Bloodlines

Flying
Sacrifice three other creatures: Transform Voldaren Pariah.
Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Bruna, the Fading Light

When you cast this spell, you may return target Angel or Human creature card from your graveyard to the battlefield.
Flying, vigilance
(Melds with Gisela, the Broken Blade.)

Skulking Ghost

Flying
When Skulking Ghost becomes the target of a spell or ability, sacrifice it.

Pilgrim’s Eye

Flying
When Pilgrim’s Eye enters the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.

Sprite Noble

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

Jetting Glasskite

Flying
Whenever Jetting Glasskite becomes the target of a spell or ability for the first time each turn, counter that spell or ability.

Serendib Efreet

Flying
At the beginning of your upkeep, Serendib Efreet deals 1 damage to you.