msem-instigator

Flash
Motivate 7 (When this creature enters the battlefield, you may motivate target creature with less power than this by putting seven +1/+1 counters on it.)

When Ramzi, Traveling Merchant enters the battlefield, adjudicate land. (Create a white enchantment Aura token with enchant land and “Sacrifice this token: Untap enchanted land.” attached to target land.)
Whenever an Aura becomes attached to a land you control, create a 1/1 green Antelope creature token.

Whenever Ravaging Tyrant enters the battlefield or attacks, each opponent loses 3 life, discards a card, and sacrifices a creature or planeswalker.

Knight creatures you control have vigilance.
{2}{G}{W}: Put a +1/+1 counter on each creature you control.

Whenever a nontoken creature with mana value 3 or less enters the battlefield under your control, exile it. If you do, create a token that's a copy of it, except it's a Construct creature instead of its other types.

Draw two cards. You may play an additional land this turn.
Coalesce {5}{G}{U} (You may cast this from your graveyard for {5}{G}{U}. If you do, put it onto the battlefield as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)

Whenever Recurring Abomination deals combat damage to an opponent, you may put target creature card with mana value 3 or less from a graveyard onto the battlefield under your control.
{4}{B}{B}: Return Recurring Abomination from your graveyard to the battlefield tapped.

Trample, haste
When Red Pelt Hart deals combat damage to a player, return it to its owner's hand.
At the beginning of your end step, sacrifice Red Pelt Hart.

Take an extra turn after this one. If this spell was cast from exile, take two extra turns after this one instead. Shuffle Reflected Moment into its owner's main library.
Prophecy {6}{U}{U} (Once each turn, you may exile a card with prophecy as you reveal it. When you do, you may cast it for its prophecy cost as long as it's exiled.)

Indestructible
When Reflected Worldwalker enters the battlefield, each player puts their hand into their sideboard.

As Reflective Stalker enters the battlefield, choose a noncreature card name.
When Reflective Stalker enters the battlefield, if it was cast, create a token that's a copy of it.
Spells you opponents cast with the chosen name cost {2} more to cast.

Creatures you control get -3/-3.
Whenever a creature you control dies, put a soul counter on Remake the Cast.
Creatures you control get +1/+1 for each soul counter on Remake the Cast.

Flying, lifelink, haste
{W}{U}{B}{R}{G}, Exile Remi Amber, Slyten Specialist: Return Remi Amber to the battlefield transformed at the beginning of your next main phase.

[+1]: Create a 1/1 blue Elemental creature token with flying, then crystallize twice. (Put a +1/+1 counter on a creature you control or create a Treasure.)
[–3]: Exile target nonland permanent. As long as it's exiled, its owner may pay {W}{U}{B}{R}{G} as a sorcery to put it into their hand.
[–7]: You get an emblem with “Pay 1 life: Add one mana of any color.” Then you gain 100 life.

Protection from Illusions
All cards that aren't on the battlefield, spells, and other permanents are Illusion kindreds in addition to their other types.

Lifelink
Whenever Repent, Daughter of Fallacy blocks or becomes blocked, it deals 3 damage to any target.

At the beginning of each end step, you may exile target creature card with mana value X or less from your graveyard, where X is the amount of life you gained this turn. If you do, create a token that's a copy of it.

Whenever an opponent casts a spell during your turn, create a token that's a copy of Resurging Rhino.

Lifelink
{W}{B}, {T}, Discard a card: Look at the top three cards of your library. You may reveal an enchantment card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
When you have no cards in hand, exile Revela, then return her to the battlefield transformed under her owner's control.

[+1]: Creatures you control get +1/+0 and gain respawn until end of turn. (When one dies, if it attacked this turn, return it to its owner's hand.)
[0]: You get an emblem with “Whenever a creature you control attacks, you gain 1 life.”
[–5]: Until end of turn, Revela becomes a legendary Human Cleric Avatar creature with lifelink, indestructible, and “This creature's power and toughness are each equal to your life total.”

[+2]: Each player sacrifices a creature. Then each player who did creates a 1/1 white and black Spirit enchantment creature token.
[–X]: You may put an enchantment card with mana value X or less from your hand onto the battlefield.
[–6]: Shuffle, then reveal the top seven cards of your library. Put any number of enchantment cards from among them onto the battlefield. Shuffle the rest into your library.

Whenever you activate a loyalty ability of Reyhsia, Truth Chaser, you may exile a card from your hand. If you do, draw a card.
[+2]: Each player exiles up to two cards from their hand, then draws that many cards.
[0]: Until end of turn, you may play a card exiled with Reyhsia and you may spend mana as though it were mana of any color to cast that spell.
[–10]: Each player exiles all but the bottom card of their library and may play cards they own exiled this way until the end of their next turn.

[+1]: Up to one other target permanent gains hexproof and indestructible until your next turn.
[–3]: Destroy target tapped permanent.
[–7]: You get an emblem with “If you would lose the game, instead exile this emblem, shuffle all cards you own that aren't on the battlefield into your library, then draw seven cards. Your life total becomes 40.”

Puzzlebox (Begin the game with this and another card you own from outside the game in the command zone, locked. That card is face down until you unlock this.)
{1}: If you control ten or more nonland permanents, unlock Riddle of Entropy.
As long as the revealed card is a permanent card, each nonland permanent you own is a copy of it.

First strike, lifelink
Tribute 4 (As this creature enters the battlefield, an opponent of your choice may put four +1/+1 counters on it.)
When Righteous Priestess enters the battlefield, if tribute wasn't paid, the chosen player can't cast creature spells during their next two turns.