msem-instigator

Verdant Sanctum enters tapped unless you control two or more green and/or white permanents.
{T}: Add {G} or {W}.

{2}, {T}: Choose a permanent you control. Reveal the top five cards of your library. You may merge one of those cards that shares a card type with the chosen permanent under it. It has those card's abilities. Put the rest on the bottom of your library in any order.

Target opponent sacrifices a creature. Put a +1/+1 counter on up to one target creature you control.

Exile target nonland permanent you control, then return that card to the battlefield under its owner's control. When it enters the battlefield as a creature, it deals damage equal to its power to target creature or planeswalker an opponent controls.

Destroy target artifact or enchantment. Spit on the Grave deals 2 damage to that permanent's controller.(Cast a copy of this spell once while this creature is on the battlefield.)

Prowess
At the beginning of combat on each of your turns, you may draw a card. If you do, discard a card.

Destroy target creature.
You gain 2 life.

{2}, Return a creature you control to its owner's hand: Smooth Musician gets +1/+1 and gains lifelink until end of turn.

{W}{W}, Exile a legendary creature card from your graveyard: If Forgotten Heir is a Peasant, it becomes a Human Noble Knight with base power and toughness 3/3, lifelink, and vigilance.

Until end of turn, creatures you control get +1/+1 and gain “{T}: This creature fights target creature.”

Flying
When Cyrukan's Messenger enters, you may search your library for an Equipment card, reveal it, put it into your hand, then shuffle.
Whenever Cyrukan's Messenger attacks, you may put an Equipment card from your hand onto the battlefield attached to Cyrukan's Messenger.

Rhapsody {3}{W}{W} (Pay {3}{W}{W} to cast this as a 4/4, or as a sorcery to make it become a 4/4.)
Lifelink

Flying
When Benevolent Malach enters, create a 1/1 colorless Construct artifact creature token.
Sacrifice Benevolent Malach: Artifacts you control gain indestructible until end of turn.

When Scaleshredder enters, you may have it consume. If you do, reveal cards from the top of your library until you reveal a creature card. Put that card onto the battlefield and the rest on the bottom of your library in a random order. (To consume, sacrifice another creature or exile a creature card from your graveyard.)

{1}, {T}: Exile target card from a graveyard. Scry 1.
{T}, Exile Soul Gate: Exile all graveyards.

Kicker {X}{U} (You may pay an additional {X}{U} as you cast this spell.)
When Tidetwister Mage enters, if it was kicked, return all other creatures with power X or less to their owners' hands.

Choose target creature you control. Mill cards equal to its power, then it fights up to one target creature you don't control.

Counter target instant or sorcery spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Flying
As long as there are five or more different creature types among creatures you control, Adventuring Guildmage gets +1/+0 and has hexproof.

Crater Burst deals 3 damage to any target. Add {W}{U}{B}{R}{G}. Until end of turn, you don't lose this mana as steps and phases end.

Discard a card, draw a card, then conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)

Exile the top five cards of your library. An opponent separates them into two piles. You may put one pile into your hand or draw two cards. Then put the rest of the piles into your graveyard.

Target permanent gains indestructible and hexproof until end of turn. Remove all -1/-1 counters from it.

Creatures you control with flying get +1/+1.
Whenever a creature you control with flying deals combat damage to a player, you may pay {U}. If you do, draw a card.

If Madame Beatrice would leave the battlefield, exile her instead.
Whenever one or more creatures you control deal combat damage to a player, that player reveals their hand. You may cast a card from their hand without paying its mana cost.