msem-instigator

Flying
Sacrifice a Fungus, Saproling, Plant, or Insect: You gain 2 life.

Flash
{U}, Sacrifice Seal of Approval: Counter target spell unless its controller pays {2}.

When Citywide Automation enters, create two 1/1 colorless Construct artifact creature tokens.
{2}{W}{W}, Sacrifice Citywide Automation: Creatures you control get +1/+1 until end of turn. Activate only as a sorcery.

Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)

(Choose only one work as a sorcery to add its ability.)
When Peacetime Murals enters, draw three cards and you gain 3 life.
{2}{G}: Grow as Two
Whenever you activate an ability of a creature you control, create a token that's a copy of that creature except it isn't legendary. This ability triggers only once each turn.
{2}{U}: A Better Mankind
Whenever a creature you control enters, you may activate one of its abilities without paying its costs. This ability triggers only once each turn.

Sacrifice another creature: Brash Hunter deals 1 damage to any target.
At the beginning of your end step, if three or more creatures died this turn, transform Brash Hunter.

You have hexproof.
Whenever you cast a noncreature spell, you may tap or untap target permanent.

Choose one —
• Welcome to the Ashmouth deals twice X damage to target creature or planeswalker.
• Welcome to the Ashmouth deals X damage to each creature and each planeswalker.
Flashback {X}{R}{R}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Whenever an Aura you control enters, draw a card.

Equipped creature gets +1/+0 for each instant and sorcery card in your graveyard.
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Flash
When Predatory Psion enters, switch target creature's power and toughness until end of turn.

Whenever a creature dies, exile it.
Hiroto Jaakuna has all activated abilities of creature cards exiled with Hiroto Jaakuna.

When Azure Archaeologist enters, investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)
{2}, {T}, Sacrifice a Clue: Draw two cards, then discard a card.

{T}: Add {C}.
{4}, {T}, Sacrifice Slyten Crystal Motherlode: Add {W}{U}{B}{R}{G}.

When Ulvenwald Ranger enters, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
{1}{G}: Transform Ulvenwald Ranger. Activate only if it's attacking.

Enchant creature
Enchanted creature has base power and toughness 8/8.

Menace (This creature can't be blocked except by two or more creatures.)
Swampcycling {2} ({2}, Discard this card: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle.)

Destroy target creature or planeswalker with mana value 2 or less. Create a tapped Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

{G}, Exile a creature card from your graveyard: Put two +1/+1 counters on target creature.

Lifelink
{W}{B}, {T}, Discard a card: Look at the top three cards of your library. You may reveal an enchantment card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
When you have no cards in hand, exile Revela, then return her to the battlefield transformed under her owner's control.

Opponents drawing a card during your turn causes one death knell of a permanent you control to trigger.
Death knell — Spells target opponent casts this turn cost {1} more to cast. (As a creature you control dies, trigger one death knell of that creature or another permanent you control.)

Flying
{2}: Copy target activated or triggered ability you control. You may choose new targets for the copy.
{W}{U}{B}{R}{G}: Search your library for a card, exile it, then shuffle. Until the end of your next turn, you may play that card.

Flying
Morph {4}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When you turn Hopebringer Cherub face up, creatures you control get +1/+1 until end of turn.

Flying, haste
{X}{R}{R}, Exile an instant or sorcery card with mana value X from your graveyard: Return Merkurio's Familiar from your graveyard to the battlefield. It gets +X/+0 until end of turn.

Whenever a Role is attached to a creature you control or you cast a spell that targets a creature you control, put a +1/+1 counter on Enthusiastic Admirer.