msem-instigator

Whenever you cast an instant or sorcery spell, upgrade Error Exploiter. (Give it one of the listed counters it doesn't already have.)
• +1/+1
• Flying
• Hexproof

Flying (This creature can't be blocked except by creatures with flying or reach.)
Escorted Rider gets +1/+1 as long as you control another creature with flying.

Flying, vigilance
Embattled creatures you control have ward {1}. (A creature is embattled if it has a counter on it or a permanent you control attached to it.)
Whenever one or more creatures you control deal combat damage to a player, put a +1/+1 counter on one of those creatures.

Flying
Whenever Eta, Experimental Doctor attacks, you may exile target card from a graveyard. If a creature card was exiled this way, put a +1/+1 counter on Eta and you gain 2 life.

Flash
Flying

Flying
{3}{W}, {T}: Exile another target creature you control, then return that card to the battlefield under your control.

Flying
When Ethereal Savior enters, you may return target creature card with mana value 2 or less from your graveyard to the battlefield.

Put target creature or planeswalker into its owner's library third from the top. Its controller creates a 1/1 white Spirit creature token with flying.

Flying
Deploy 2 (As this enters, you may tap any number of other creatures you control with total power 2 or more.)
When Ethereal Shepherd enters deployed, exile target creature. That creature's controller creates a 1/1 white Spirit creature token with flying.

Flying
Nonartifact permanents entering the battlefield don't cause abilities to trigger.

When Ethersketch Blueprints enters, create a 1/1 blue Thopter artifact creature token with flying.
{2}, Sacrifice Ethersketch Blueprints: Draw a card.
Monument {5}{B}{B} (You may cast this transformed from your graveyard for its monument cost. Exile it if it would leave the battlefield or not resolve.)
Ascend {4}{W} ({4}{W}: Exile this permanent, then return it to the battlefield transformed. Ascend only as a sorcery.)

When Ethersworn Elite enters, you gain 2 life and create two 1/1 blue Thopter artifact creature tokens with flying.
Cycling {2} ({2}, Discard this card: Draw a card.)

Flying, vigilance
Whenever Etherwrought Figurehead attacks, you may pay 4 life. If you do, destroy target tapped creature.
If Etherwrought Figurehead would leave the battlefield, exile it instead.

Put a +1/+1 counter on target creature. That creature gains flying until end of turn. Untap it.

Flying
Whenever Everember Phoenix deals combat damage to a player or planeswalker, you may put target exiled card you own or card in your graveyard that shares a name with it into your hand.
Revive {1}{R}{R} ({1}{R}{R}, Exile this card from your graveyard: Create a token that's a copy of this card, except it has no mana cost. Activate this ability only any time you could cast a sorcery.)

Flying, vigilance

When Experienced Team enters, choose one —
• Create a 4/2 white Bear creature token.
• Create a 2/4 red Snail creature token.
• Create a 2/2 white Bird creature token with flying.

When Exquisite Artisan enters, judge target noncreature artifact you control. If you honor it, it becomes a 0/0 Construct artifact creature with flying. (Honor it by putting a +1/+1 counter on it or condemn it by sacrificing it to draw a card.)

Flying, lifelink
When Facsimile of Divinity enters, it deals 4 damage to any target.

Flying, first strike
Vanishing (At the beginning of your upkeep, remove a time counter from this permanent. When the last is removed, sacrifice it.)
Fadefeather Griffin enters with a time counter on it for each other creature you control.

Create a 1/1 blue Faerie Rogue creature token with flying. Scry 2.

Flying
Whenever you scry, tap target creature you don't control.

Flying, vigilance
At the beginning of your end step, return up to one target creature card from your graveyard to the battlefield. If a creature isn't returned this way, create a 4/4 Elemental creature token that's all colors.

Flying
Civilized — Whenever Fakadeh's Anointed deals combat damage to an opponent, if you control an artifact, a creature, and an enchantment, you may return target permanent card with mana value 3 or less from your graveyard to your hand.

Flying
Whenever Fakadeh, Florid Queen attacks, you may exile an instant or sorcery card from your graveyard with mana value 3 or less.
Whenever Fakadeh deals combat damage to a player, cast any number of cards exiled with her without paying their mana costs.