msem-instigator

Creatures you control get +2/+2.
Wanderlust — As long as you control four or more differently named lands, creatures you control have trample and can't be blocked by more than one creature.

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
{2}{G}: Reveal the top three cards of your library. You may put a creature card from among them on top. If you're in a renaissance, put it into your hand instead. Put the rest on the bottom of in any order.

You may cast this spell as though it had flash if you control a Horror creature.
Destroy all non-Horror creatures.

Flying
When Valiant Instructor enters, you return up to one target enchantment card from your graveyard to your hand.

Discard your hand, then draw three cards.
Mindstorm's Eye deals 3 damage to any target.

Vigilance
Cat creatures you control have vigilance.
When Savannah Scout enters, create a 2/2 white Cat creature token.

At the beginning of combat on your turn, target creature you control explores three times. It attacks this combat if able and other creatures you control can't attack this combat. (Reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on that creature, then put the card back or put it into your graveyard.)

Choose target creature, then choose two —
• Put a +1/+1 counter on the chosen creature.
• The chosen creature gains lifelink until end of turn.
• The chosen creature gains indestructible until end of turn.

Concord — When Gold Pelt Responders enters, if there are four or more card types among permanents you control, you may exile target nonland permanent an opponent controls with mana value 4 or less until Gold Pelt Responders leaves the battlefield.

Target creature you control gets +2/+0 and gains first strike until end of turn. If you control an artifact, draw a card.

Soulsmoke Adept gets +1/+0 and has lifelink as long as it's embattled. (A creature is embattled if it has a counter on it or has a permanent you control attached to it.)

Reveal the top four cards of your library. You may put one into your hand and the rest into your graveyard.
Compose (Then if you cast this from your hand, exile it and create a Saga token with “r3—You may cast a copy of this card from exile without paying its mana cost.”)

Whenever you cast your second spell each turn, you may tap target creature and put a stun counter on it.

When Obscure Apostle enters, create an Idol token. (It's an artifact with “{1}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.”)
Whenever you sacrifice an Idol, Obscure Apostle can't be blocked this turn.

Flying
When Mei's Understudy enters, if you control another Actor, draw a card.

You may pay {W} and tap an untapped Monk you control rather than pay this spell's mana cost.
The next 3 damage that would be dealt to you and/or permanents you control this turn is dealt to any target instead.

Whenever Thrinax Sporemother or another nontoken creature you control dies, create a 1/1 green Saproling creature token.
Whenever a creature card is exiled from your graveyard, create a 1/1 green Saproling creature token.

Flying
Whenever Havengul Banshee attacks, each creature defending player controls gets -1/-0 until end of turn.
{3}{U}: Return Havengul Banshee from your graveyard to the battlefield transformed under your control attached to target opponent. Activate only as a sorcery.

Equipped creature gets +1/+0 and has menace.
Equip {3}

When Delusive Shadows enters, each opponent loses life equal to the number of cards that player owns in exile.

Flash
First strike (This creature deals combat damage before creatures without first strike.)

Flying
Whenever Pledged Griffin attacks, another target attacking creature gains flying until end of turn.

First strike
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.)
Almgrove Champion can only attack or block alone.

This spell has flash as long as you control another enchantment.
When Kernel Quarantine enters, exile all other creatures until Kernel Quarantine leaves the battlefield.

As long as there are seven or more loyalty counters on Kalemn, she has lifelink and deathtouch.
[+2]: Kalemn deals 2 damage to each opponent.
[+1]: Kalemn deals 1 damage to target creature or planeswalker.
[–7]: For each opponent, Kalemn deals 3 damage to that player unless they discard a card. Repeat this process six times.