msem-instigator

Enchant creature
Enchanted creature can't block or be blocked.
{U}: Enchanted creature gets +1/+0 or -1/-0 until end of turn.

Destroy target artifact or tapped creature.

You may have Blurry Counterpart enter as a copy of any creature on the battlefield.
Mirage {1}{U} (You may cast this spell as though it had flash for its mirage cost. If you do, sacrifice it at the beginning of the next cleanup step.)

Haste
Whenever Quinn or another creature you control enters, tap all creatures your opponents control.

Foretell {R} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
If this spell is foretold, you may cast it as though it had flash.
Create two 1/1 red Pirate creature tokens.

Mill a card. Target creature gets -X/-X until end of turn, where X is the number of cards put into your graveyard from anywhere this turn.

Flash
Enchant permanent
Whenever enchanted permanent deals damage to an opponent, conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)

[+1]: Each player may draw a card. For each opponent who does, you gain 4 life.
[–3]: Exile target nonland permanent. As long as that card remains exiled, its owner may pay {2} any time they could cast a sorcery. If they do, they return that card to their hand.
[–8]: Target opponent gets an emblem with “Creatures you control lose all abilities and have base power and toughness 1/1.”

Archive 3 (As this enters, shuffle the top three cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
Whenever you draw a card from the archived library, target creature you control can't be blocked this turn.

Menace (This creature can't be blocked except by two or more creatures.)
Whenever a nontoken creature you control dies, exile the top card of your library. You may play that card until the beginning of your next end step.

Cadence (Whenever you cast a spell, if its mana value is greater than this creature's power, put a +1/+1 counter on this creature.)
Whenever Robot Herder deals combat damage to a player, create a 1/1 colorless Servo artifact creature token.

Equipped creature gets +2/+2 and has flying and lifelink.
When equipped creature deals combat damage to a player, unattach Shionoshio, Ocean's Vow, then transform it.
Equip {W}{U}
Shionoshio can be your commander.

Indestructible
As long as your devotion to red and green is less than seven, Klothys isn't a creature.
Spells you cast can't be countered.
At the beginning of combat on your turn, you may have another target creature you control assign its combat damage this turn as though it weren't blocked.

Trample
{1}{G}, Exile a card from your graveyard: Target creature gains trample until end of turn.

{W}, {T}: Target creature doesn't untap during its controller's next untap step.

Whenever Morbid Mimic enters or attacks, exile up to one target creature card from a graveyard.
Morbid Mimic has all activated abilities of cards exiled with it.

{T}: Each of two other target permanents you control that share a card type become a copy of the other until end of turn.

Whenever Quick-Witted Slayer deals combat damage to a player, you draw a card and you lose 1 life.

You may reveal a creature card with flying you own from outside the game and put it into your hand. Exile Snag Apparition.

Target player draws X cards and loses X life, where X is the number of enchantments you control.

Pressure {2}{B} (You may cast this spell for its pressure cost if there are seven or more cards in your graveyard.)
Menace (This creature can't be blocked except by two or more creatures.)

Target creature gets +1/+2 and gains flying until end of turn.
Agonize (You may cast this card from your graveyard by putting a -1/-1 counter on a creature you control in addition to paying its other costs. Then exile this card.)

Equipped creature gets +1/+0.
Equipped creature has deathtouch as long as it's attacking.
Equip {1}

Flying, haste
Whenever you attack with three or more creatures, harmonize three times. (To harmonize, trigger up to one harmony of a permanent you control.)
If you would harmonize, you may instead return Herald of Festivities from your graveyard to your hand.