msem-instigator

Harmony — Target creature you control gets +1/+0 and gains first strike until end of turn.
When Fellor War-Skald enters, harmonize. (Trigger up to one harmony of a permanent you control.)

Advance {3}{R}{W}{B} (Cast this for {3}{R}{W}{B} to advance it as it enters. {3}{R}{W}{B}: Advance this as a sorcery.)
Whenever Valinov Vandal advances, target opponent sacrifices a permanent. Put a +1/+1 counter on Valinov Vandal.

This spell can't be countered.
Flying, haste
Mayu, the Endless Flow gets +2/+2 for each spell you've cast this turn.

{2}{G}: Look at the top three cards of your library. You may reveal a creature or Revelation card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Each creature you control with power 4 or greater can't be blocked by creature tokens.

Equipped creature gets +1/+1 and has lifelink.
Whenever equipped creature dies, if it wasn't a token, you may pay {3}. If you do, create a token that's a copy of that creature and attach Bloodguard's Hand to it.
Equip {3}

{2}, Sacrifice Walking Platform: Create a 1/1 colorless Thopter artifact creature token with flying.

Hexproof
Whenever one or more cards are put into your graveyard from anywhere, Creeping Hidebehind gets +1/+0 until end of turn.

Trample
Whenever you attack, target creature gains first strike until end of turn. If you control a Dwarf and an Elf, that creature gains double strike until end of turn instead.

When Rum Guzzler enters, forebode, then you lose 1 life. (Create a tapped colorless Omen artifact token with “{T}, Discard a card, Sacrifice this artifact: Draw a card.”)

Reveal cards from the top of your library until you reveal a creature card and a land card. Put those cards into your hand and the rest on the bottom of your library in a random order.
Concord — If there are four or more card types among permanents you control, create two Treasure tokens.

Whenever equipped creature attacks, create a token that's a copy of it and that's tapped and attacking, except that token isn't legendary if equipped creature is legendary. Exile that token at end of combat.
Equip {3}

Other Elemental creatures you control get +1/+0.

When Evermind's Watch enters, conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)
Once each turn, when you activate a loyalty ability, you may create a Function token with its effects. (It's an enchantment. As you cast an instant or sorcery spell, sacrifice any number of Functions to add their effects to that spell.)

Mill three cards. You may return a card milled this way to your hand. Each opponent loses 2 life.
Flashback {3}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

When Spiked Burrower dies, if it didn't have a counter on it, return it to the battlefield under your control with a +1/+1 counter or a lifelink counter on it.

Flash
If an opponent would draw a card, that player exiles the top card of their library instead. During each player's turn, that player may play that card for as long as it remains exiled.

Transcend (Activate as a sorcery to gain the next type and a +1/+1 counter.)
Flying
{1}{U}: Demigod — Whenever a creature you control deals combat damage to a player or planeswalker this turn, draw a card.
{3}{U}{U}: God — Create an X/X blue Spirit creature token, where X is the number of cards in your hand. Put a flying counter on it.

Flying
When Arcanum Owl enters, you may return target instant or sorcery card from your graveyard to your hand.

Ignition Point deals 3 damage to any target.
The next card you cast this turn can be cast as though it has flash.

Menace (This creature can't be blocked except by two or more creatures.)
Infiltrate (Whenever one or more attacking creatures you control aren't blocked, this creature gets +1/+1 until end of turn.)

Creatures you control get +1/+1 for each color among permanents you control.

Put a +1/+1 counter on up to one target creature. (Then exile this card. You may play the land later from exile.)

Choose X. You may choose the same mode more than once.
• Each opponent loses 3 life and you gain 3 life.
• Each opponent sacrifices a nonland permanent and you create a Treasure token.
• Each opponent discards a card and you draw a card.

Equipped creature gets +1/+1 and has distorted. (It can be blocked by tapped creatures but not untapped creatures.)
Equip {1}