Bearer of Silence

Devoid (This card has no color.)
When you cast this spell, you may pay . If you do, target opponent sacrifices a creature. ( represents colorless mana.)
Flying
Bearer of Silence can’t block.

Steppe Glider

Flying, vigilance
: Target creature with a +1/+1 counter on it gains flying and vigilance until end of turn.

Sphinx of the Final Word

This spell can’t be countered.
Flying, hexproof
Instant and sorcery spells you control can’t be countered.

Dimensional Infiltrator

Devoid (This card has no color.)
Flash
Flying
: Target opponent exiles the top card of their library. If it’s a land card, you may return Dimensional Infiltrator to its owner’s hand. ( represents colorless mana.)

Thought Harvester

Devoid (This card has no color.)
Flying
Whenever you cast a colorless spell, target opponent exiles the top card of their library.

Sky Scourer

Devoid (This card has no color.)
Flying
Whenever you cast a colorless spell, Sky Scourer gets +1/+0 until end of turn.

Vampire Envoy

Flying
Whenever Vampire Envoy becomes tapped, you gain 1 life.

Stormchaser Mage

Flying, haste
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Zur the Enchanter

Flying
Whenever Zur the Enchanter attacks, you may search your library for an enchantment card with converted mana cost 3 or less and put it onto the battlefield. If you do, shuffle your library.

Dawnbringer Charioteers

Flying, lifelink
Heroic — Whenever you cast a spell that targets Dawnbringer Charioteers, put a +1/+1 counter on Dawnbringer Charioteers.

Spawn of Thraxes

Flying
When Spawn of Thraxes enters the battlefield, it deals damage to any target equal to the number of Mountains you control.

Eater of Hope

Flying
, Sacrifice another creature: Regenerate Eater of Hope.
, Sacrifice two other creatures: Destroy target creature.

Celestial Archon

Bestow (If you cast this card for its bestow cost, it’s an Aura spell with enchant creature. It becomes a creature again if it’s not attached to a creature.)
Flying, first strike
Enchanted creature gets +4/+4 and has flying and first strike.

Necromaster Dragon

Flying
Whenever Necromaster Dragon deals combat damage to a player, you may pay . If you do, create a 2/2 black Zombie creature token and each opponent mills two cards.

Harbinger of the Hunt

Flying
: Harbinger of the Hunt deals 1 damage to each creature without flying.
: Harbinger of the Hunt deals 1 damage to each other creature with flying.

Defiant Bloodlord

Flying
Whenever you gain life, target opponent loses that much life.

Boltwing Marauder

Flying
Whenever another creature enters the battlefield under your control, target creature gets +2/+0 until end of turn.

Arashin Sovereign

Flying
When Arashin Sovereign dies, you may put it on the top or bottom of its owner’s library.

Sage of the Inward Eye

Flying
Whenever you cast a noncreature spell, creatures you control gain lifelink until end of turn.

Forgestoker Dragon

Flying
: Forgestoker Dragon deals 1 damage to target creature. That creature can’t block this combat. Activate this ability only if Forgestoker Dragon is attacking.

Silent Sentinel

Flying
Whenever Silent Sentinel attacks, you may return target enchantment card from your graveyard to the battlefield.

Hypersonic Dragon

Flying, haste
You may cast sorcery spells as though they had flash. (You may cast them any time you could cast an instant.)

Arbiter of the Ideal

Flying
Inspired — Whenever Arbiter of the Ideal becomes untapped, reveal the top card of your library. If it’s an artifact, creature, or land card, you may put it onto the battlefield with a manifestation counter on it. That permanent is an enchantment in addition to its other types.

Pristine Skywise

Flying
Whenever you cast a noncreature spell, untap Pristine Skywise. It gains protection from the color of your choice until end of turn.