msem-instigator

Scry X, where X is target creature's power.
Fabled {5}{U}{U} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that creature.)

Whenever you cast an instant or sorcery spell, create a 1/1 red Alien creature token.
{2}{R}, Sacrifice two Aliens: Copy target instant or sorcery spell you control. You may choose new targets for the copy.

Reach
Attain {4}{G} ({4}{G}: Transform this. Spend at least three colors of mana to activate this, and only as a sorcery.)

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.

Enchant creature
You control enchanted creature.

Create two 1/1 green Frog creature tokens. (Then exile this card. You may cast the creature later from exile.)

Search your library for a land that doesn't have the same name as a land you control, reveal it, put it into your hand, then shuffle.

When Ethersketch Blueprints enters the battlefield, 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.)

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.

Reveal the top two cards of your library. Put up to one land card and up to one nonland card from among them into your hand. Put the rest on the bottom in any order.

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)
Whenever you gain life, you may pay {W}. If you do, transform Evigian Noble.

Enchant creature
Enchanted creature gets +2/+2.
Whenever enchanted creature attacks, create a 2/2 white Knight creature token that's tapped and attacking.

Draw three cards. (Then exile this card. You may cast the creature later from exile.)

Unveil {3}{G}{W} ({3}{G}{W}: Transform this. Unveil only as a sorcery.)

Up to one target creature can't block this turn. (Then exile this card. You may play the land later from exile.)

Hexproof
Discard two cards: You may cast target instant or sorcery card in your graveyard this turn. If that spell would be put into a graveyard, exile it instead.
At the beginning of your end step, if you have two or fewer cards in hand, transform Fahrib.

Whenever Failed Martyr attacks, each other attacking creature gets +1/+0 until end of turn.
Attain {4}{W} ({4}{W}: Transform this. Spend at least three colors of mana to activate this, and only as a sorcery.)

Create a 1/1 white Bird creature token with flying.
Monument {2}{W} (You may cast this transformed from your graveyard for its monument cost. Exile it if it would leave the battlefield or not resolve.)

Trample
Fallen Warden's power and toughness are each equal to the number of creature cards in all graveyards.

Fang Den Bouncer can't be blocked by creatures with power 2 or less.

Menace (This creature can't be blocked except by two or more creatures.)

When Fang Den Headhunter enters the battlefield, look at the top card of your library. If it's a creature card, you may reveal it and draw a card.

Fang Den Jaws enters the battlefield tapped unless you played it from exile.
{T}: Add {R} or {G}.

Target opponent discards a card. If they can't, draw a card. (Then exile this card. You may cast the creature later from exile.)

Flying, lifelink