msem-instigator

Haste
{R}, {T}: Miede-District Enforcer deals 2 damage to target creature that entered this turn or player that cast a creature spell this turn.
Paranoia {1}{R} (You may cast this spell for its paranoia cost when a permanent you control leaves the battlefield.)

Creatures you control gain flying until end of turn if you control a creature with flying. The same is true for first strike, double strike, haste, hexproof, indestructible, lifelink, trample, vigilance, and prowess.

Target attacking creature gets +3/+0 until end of turn.

Target player reveals their hand. You choose three cards from it and exile them. Then that player exiles the top three cards of their library.

Flying
If Mindbreaker Sphinx would deal combat damage to a player, you may prevent it. If you do, that player mills X cards, where X is Mindbreaker Sphinx's power. If two cards that share a card type were milled this way, put a +1/+1 counter on Mindbreaker Sphinx.

Deathtouch
Whenever an opponent casts a noncreature spell, draw a card.

Flash (You may cast this spell any time you could cast an instant.)
When Mist Lurker enters, tap all creatures you don't control.

Mistwake Hydra enters with X +1/+1 counters on it.
Creatures with power less than Mistwake Hydra's power can't block it.

Deathtouch
Mirage {1}{B} (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.)

Target creature you control gets +1/+0 and gains menace until end of turn. (That creature can only be blocked by two or more creatures.)
Draw a card.

Moonlit Shore enters tapped unless you control two or more blue and/or black permanents.
{T}: Add {U} or {B}.

At the beginning of your upkeep, you may put a reinforcement counter on Moranai Paragon.
Whenever Moranai Paragon attacks, you may put a creature card with mana value equal to the number of reinforcement counters on Moranai Paragon from your hand onto the battlefield.

Return up to two target creature cards from your graveyard to your hand.

Target creature can't be blocked this turn.

Sacrifice another colorless creature: Put a +1/+1 counter on target creature.

Destroy target creature an opponent controls, then that player sacrifices a creature.

Enchant creature
When Mystic's Mantle enters, draw a card.
Enchanted creature gets +1/+1.
Mirage {G} (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.)

Vigilance (Attacking doesn't cause this creature to tap.)

Flying
{3}{U}, Sacrifice Nimbus Fae: Put target creature on top of its owner's library.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When Northwind Master enters, you may have another target creature you control gain prowess until end of turn.

Colorless creatures you control get +1/+1.

Target player mills seven cards.
Inscribe {3}{U}{B} ({3}{U}{B}: Exile this card from your hand inscribed on a creature you control. Whenever that creature attacks, its controller may cast a copy of the inscribed card without paying its mana cost. Inscribe only as a sorcery.)

Lifelink (Damage dealt by this creature also causes you to gain that much life.)
When Ophelia's Neophyte enters, you may have another target creature you control gain lifelink until end of turn.

When Oracle Crab enters, scry 2. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)