msem-instigator

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Concord — When Coral Bruiser enters, if there are four or more card types among permanents you control, put target creature you don't control into its owner's library third from the top.

Enchant creature
Concord — When Coral Guidance enters, if there are four or more card types among permanents you control, draw a card.
Enchanted creature doesn't untap during its controller's untap step.

Whenever Coral Hunter attacks, another target creature can't be blocked this turn.

Menace
Whenever a card leaves your graveyard for the first time each turn, invigorate 1. (Choose a creature with the least power among creatures you control and put a +1/+1 counter on it.)

Slipstream (This creature can't be blocked as long as only creatures with slipstream are attacking.)
Cycling {U} ({U}, Discard this card: Draw a card.)

Vigilance, trample
Whenever you draw your second card each turn, put a +1/+1 counter on Coralblade Cohort.
Cycling {G} ({G}, Discard this card: Draw a card.)

Exile target creature with power 4 or greater.
Create a Treasure token. (It's an artifact with “{T}, Sacrifice this permanent: Add one mana of any color.”)

Trample
Whenever you cast a noncreature spell, put a +1/+1 counter on Coralhide Wurm.

When Coralight Champion enters, create a white Aura enchantment token named Hila's Favor attached to target creature. The token has enchant creature and “Enchanted creature has double strike as long as there's another Aura attached to it. Otherwise, it has first strike.”

{3}{W}: Tap target creature. Activate only during your turn.

Concord — When Coralight Communer enters, if there are four or more card types among permanents you control, draw a card.

Flash
When Coralight Lifebloom enters, create a green Aura enchantment token named Kelpcrown attached to target creature you control. The token has enchant creature and “Enchanted creature has hexproof.”

When Coralight Mystic enters, create a white Aura enchantment token named Whale's Spirit attached to target creature. The token has enchant creature and “Enchanted creature has lifelink.”

When Coralight Paladin enters, you may search your library for an artifact card, reveal it, then shuffle and put that card on top.
Concord — Whenever Coralight Paladin attacks, if there are four or more card types among permanents you control, Merfolk you control get +1/+1 until end of turn.

Vigilance
When Coralight Sentinel enters, create a white Aura enchantment token named Crab's Resolve attached to target creature. The token has enchant creature and “Enchanted creature gets +0/+2.”

Whenever you cast a white spell, creatures you control get +1/+0 until end of turn.
Whenever you cast a blue spell, draw a card, then discard a card.

Reach
When Cordial Ticketmaster enters, put a +1/+1 counter on target creature.

Enchant opponent
Whenever enchanted opponent casts a spell, you may reveal cards from the top of your library until you reveal a nonland card that costs less. Exile that card, and put the rest on the bottom in a random order. You may play the exiled card until the end of your next turn.

Core Ignition deals X damage to target creature or planeswalker.
Conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)

When Core Paradigm enters, conjure five cards named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)
Up to three times each turn, you may cast a sorcery spell without paying its mana cost.

Choose one —
• Target permanent gains indestructible and lifelink until end of turn.
• Exile target enchantment with mana value 3 or less.

This spell costs {1} less to cast for each artifact you control.
Draw three cards, then Corecharge deals damage to any target equal to the number of cards in your hand.

Flying
When Cormoran, Raven Monarch enters, you may put target creature card with mana value 3 or less from a graveyard onto the battlefield under your control.

[+2]: Put two +1/+1 counters or loyalty counters on up to one other target creature or planeswalker.
[0]: Cornrose, the Mighty deals 3 damage to target creature. That creature deals damage equal to its power to Cornrose.
[–2]: Until end of turn, target creature gets +X/+X and gains trample, where X is its power.