msem-instigator

[+1]: Untap target land.
[–1]: Exile the top card of your library. You may play that card until end of turn. If a land card is exiled this way, you gain 2 life.
[–7]: Untap each land you control. Lands you control become 3/3 Elemental creatures with haste until end of turn. They're still lands.

You may play cards exiled with Azamir planeswalkers.
[+2]: Search each player's library for a card and exile it. Shuffle each library searched this way.
[–3]: Each opponent chooses a permanent they control for each permanent type, then exiles those permanents.
[–8]: Exile all cards your opponents own from outside the game. Until end of turn, you may cast spells without paying their mana costs and you may play cards exiled with Azamir planeswalkers.

[+1]: Exile up to two target cards from graveyards. You gain 3 life.
[–2]: Exile target artifact, enchantment, or nonbasic land.
[–7]: You get an emblem with “At the beginning of your upkeep, exile target noncreature permanent.”

[+1]: Add {R} or {G}.
[–1]: Fatresya deals 2 damage to target creature. That creature can't block this turn.
[–5]: You get an emblem with “Creatures you control get +2/+2 and have haste and trample.”

[+1]: Haide Bankbuster deals 2 damage divided as you choose among one or two targets.
[+1]: Draw two cards unless any player has Haide Bankbuster deal 3 damage to them.
[–9]: Until end of turn, gain control of all permanents target player controls and they gain haste. Untap those permanents.

[+1]: Mill two cards. Create a 1/1 green Spirit Snake creature token.
[0]: You may sacrifice a Spirit. When you do, return target permanent card from your graveyard to your hand.
[–2]: Exile another target nonland permanent until Rain Zai leaves the battlefield. You gain 2 life.

[+1]: Scry 1, then draw a card. You lose 1 life.
[–2]: Target player sacrifices a creature, then loses life equal to the greatest power among creatures they control.
[–5]: Choose a nonland card name. Exile all creatures and planeswalkers with that name, then search target player's graveyard, hand, and library for any number of cards with that name and exile them. That player shuffles.

At the beginning of your end step, choose any number of permanents and/or players, then give each another counter of each kind it already has.
[+1]: Scry 1. Add {U} or {R}.
[–X]: Exile the top X cards of your library. Until end of turn, you may play a card exiled with Trainee Karina Oblay.