msem-instigator

When you cast this spell, copy it for each color of mana spent to cast it beyond the first.
Flying

Whenever you cast your first creature spell each turn, you may pay {1}. If you do, create a 1/1 colorless Spirit creature token.

Look at the top three cards of target player's library. Put one back and exile the rest.
Coalesce {5}{U} (You may cast this from your graveyard for {5}{U}. If you do, it enters as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)
Whenever Lurk at Vision's Edge attacks, defending player exiles the top five cards of their library.

Put a +1/+1 counter on target creature. It can't be blocked this turn.(Cast a copy of this spell once while this creature is on the battlefield.)

Create a tapped Treasure token.
Memento {2}{B}{B} (You may cast this from your graveyard for {2}{B}{B}. If you do, put it onto the battlefield transformed after it resolves. Exile it if it would leave the battlefield or not resolve.)

Macabre Effigy enters with three charge counters on it.
{3}, {T}, Remove a charge counter from Macabre Effigy: Create a 2/2 black Zombie creature token. Activate only as a sorcery.

As an additional cost to cast this spell, discard a card or pay {2}.

Whenever you cycle a card, scry 1. (Do this before you draw.)
{W}{U}{B}{R}{G}, Sacrifice Maelstromancy: Return up to three target cards with cycling abilities from your graveyard to your hand.

Target creature you control gains hexproof until end of turn. Scry 1.

Magma Spray deals 2 damage to target creature. If that creature would die this turn, exile it instead.

As an additional cost to cast this spell, sacrifice a land and discard a card.
Draw three cards.

Target creature gains haste until end of turn. Make an Entrance deals 2 damage to up to one target creature.

Search your library for an Equipment card, reveal it, put it into your hand, then shuffle. (Then exile this card. You may cast the creature later from exile.)

Enchant creature
Enchanted creature gets -X/-X, where X is 1 plus the number of counters on it.

Haste
Whenever Malformed Mongrel deals combat damage to a player, discard a card.

{T}: Add one mana of any color.

When Mana Rose enters, you gain 2 life and scry 2.
{1}, {T}: Add one mana of any color.

Whenever you cast a spell from anywhere other than your hand, surveil 1.

Enchant creature
Enchanted creature gets +1/+1.
When enchanted creature dies, return another target creature card from your graveyard to your hand.

Improve {1}{W} ({1}{W}: Put a +1/+1 counter on this creature. This costs {1} more to activate for each +1/+1 counter on it. Improve only as a sorcery.)
Prevent all combat damage that would be dealt to attacking embattled creatures you control. (A creature is embattled if it has a counter on it or has a permanent you control attached to it.)

{1}: Look at the top card of your library.
{T}, Sacrifice Marked Coin: You may shuffle your library. Draw a card.

Menace
When Marrow Raptor enters, you may sacrifice a land or exile a land card from your graveyard. If you do, put a +1/+1 counter on it.

Marrowskitter can't block and can't be blocked.
{3}{B}{B}: Return Marrowskitter from your graveyard to the battlefield. Create a token that's a copy of it.

Target creature gains hexproof until end of turn.
Create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

First strike
Whenever Martial Maestro attacks, other attacking creatures you control get +1/+0 until end of turn.