msem-instigator

{T}, Mill two cards: Add one mana of any color.

Creatures and nonbasic lands your opponents control enter tapped.
Morph {3}{W}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When you turn Embodiment of Order face up, it becomes a 4/4 white Angel creature with flying.

Whenever you gain life for the first time each turn, reveal the top card of your library. If it's a land or creature card, put it into your hand. Otherwise, put it into your graveyard.

Splendid Scenery enters tapped unless you control a basic land.
{T}: Add {G} or {W}.

Lifelink
When Sunlight Dancer enters, target opponent gains 4 life.

Tithe (When this creature enters, you may tap three other artifacts and/or creatures you control.)
Menace, lifelink
When Determined Evangelist's tithe is paid, put two +1/+1 counters on it.

When Bleak Gorge Convoy enters, you may search your library for a Desert card, put it onto the battlefield tapped, then shuffle.

When Whisperwoods Reclaimer enters, if there are three or more land cards in your graveyard, return target land card from your graveyard to the battlefield tapped.

Target creature's controller judges it. Then if they honored it, you gain control of that creature until end of turn. Untap it. It gains haste until end of turn. (That creature's controller honors it by putting a +1/+1 counter on it or condemns it by sacrificing it to draw a card.)

{1}{R}: Target creature can't block Slippery Salamander this turn.

You gain 5 life. Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)
Flashback {2}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

When Foster the Future enters, create a 3/3 red Panda creature token.
Panda creatures and Mao planeswalkers you control have “+2: Target creature you control gains vigilance until end of turn” and “-4: Creatures you control get +1/+1 and gain trample until end of turn.”

Enchant player
Creatures attacking enchanted player have deathtouch.
Whenever a creature deals combat damage to enchanted player, that creature's controller draws a card. This ability triggers only once each turn.

When Drown in Apathy enters, exile target creature until Drown in Apathy leaves the battlefield. If a permanent would be returned to the battlefield this way, put it in its owner's hand instead.

When Ion Field enters, target player creates two 1/1 red Elemental creature tokens.
Whenever you cast an instant or sorcery spell that targets only one target, you may pay {1}{R}{R} and sacrifice Ion Field. If you do, copy that spell for each other target it could target. Each copy targets a different one of those targets.

Flying, haste
Whenever Rhyolithic Hellkite attacks, you may sacrifice a land or exile a land card from your graveyard. If you do, put a +1/+1 counter on Rhyolithic Hellkite.

Target creature gains lifelink until end of turn. (Damage dealt by that creature also causes you to gain that much life.)

Enchant creature
When Til Death enters, exile target creature an opponent controls other than enchanted creature until Til Death leaves the battlefield.
Enchanted creature has defender.

When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.
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.”)

Other Warriors you control have trample.
{G}: Chratteri Valiant gets +2/+2 and gains trample until end of turn. Activate only once each turn.

({T}: Add {U}, {R}, or {W}.)
Ancient Dominion enters tapped.

Until end of turn, target creature loses all abilities and becomes a colorless Human with base power and toughness 1/1 and no name.

At the beginning of your end step, put a -1/-1 counter on each creature you control.
[+1]: Create two 2/2 black Zombie creature tokens.
[0]: Whenever a creature dies this turn, you draw a card and you lose 1 life.
[–4]: Target opponent gets an emblem with “At the beginning of your end step, put a -1/-1 counter on each creature you control.”

Counter target spell if it has mana value 2 or less or if this spell was foretold.
Foretell {1}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)