msem-instigator

Up to two target creatures you control each get +1/+0 and gain menace until end of turn.

Choose up to two target permanent cards in your graveyard with total mana value 4 or less. Return one to the battlefield and the rest to your hand.

Whenever you cast a spell that targets one or more permanents you don't control, gain control of those permanents until end of turn. Untap them. They gain haste until end of turn.

First strike
Back-Alley Gnoll has lifelink as long as it's enchanted by a black Aura.
Back-Alley Gnoll gets +2/+0 as long as it's enchanted by a red Aura.

Destroy target nonland permanent.
Monument {W}{B} (You may cast this transformed from your graveyard for its monument cost. Exile it if it would leave the battlefield or not resolve.)

When To Go Beyond enters, draw a card, then choose a card name.
{2}{U}: Reveal a card you own from outside the game with the chosen name and put it on top of your library.

Add two mana in any combination of colors. (Then exile this card. You may cast the creature later from exile.)

Destroy all creatures. Each player shuffles their graveyard into their library.

Enchant creature
When Sylvan Majesty enters, search your library for a Forest card, put it onto the battlefield tapped, then shuffle.
Enchanted creature gets +3/+3.

Put a +1/+1 counter on target creature you control. Then that creature fights target creature you don't control. (Each deals damage equal to its power to the other.)

Trample
Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
When Nonpareil of the Abyss enters, create an Idol token.
Nonpareil of the Abyss has ward {8} as long as you're in a renaissance.

Flying, trample, lifelink

Whenever Little Kibo attacks, you may pay {W}{W}. If you do, transform it.

Trample
Other creatures you control get +1/+1 and have trample.

({T}: Add {U}, {R}, or {W}.)
Ancient Dominion enters tapped.

Equipped creature has “{2}, {T}: This creature deals 1 damage to any target.”
{4}: Untap equipped creature.
Equip {3}

You may play Anemone Cluster from your graveyard as long as seven or more cards are in your graveyard.
Anemone Cluster enters tapped.
{T}: Add {G} or {U}.
Cycling {1}{G}{U} ({1}{G}{U}, Discard this card: Draw a card.)

Breach (Whenever this deals combat damage to a player, you may have it become an Aura Curse until your next turn. Attach it to that player.)
Once during each of your turns, you may cast a spell with mana value 3 or less that targets a cursed opponent or a permanent a cursed opponent controls by paying life equal to its mana value rather than its mana cost.

You may look at the top card of your library at any time.
Whenever one or more creatures attack you, you may pay {1}{U}. When you do, draw a card.

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

Menace
Whenever Ruin Delver attacks, you may sacrifice a land or exile a land card from your graveyard. If you do, you draw a card and you lose 1 life.

Flash
When Collapsed Mine enters, exile another target nonland permanent until Collapsed Mine leaves the battlefield.

Gain control of target permanent. (Cast a copy of this spell once while this creature is on the battlefield.)

This spell can't be countered.
Firebloom deals 3 damage to target creature or planeswalker.

Target creature gets +1/+0 and gains first strike until end of turn.
Cycling {2} ({2}, Discard this card: Draw a card.)