msem-instigator

Bleed {2}{R}{R} (You may cast this spell for its bleed cost if an opponent has lost life this turn.)
When Restless Hedonist enters the battlefield, discard your hand, then draw three cards.

{U}, Sacrifice Results Uncertain: Scry 2.
{U}, Sacrifice Results Uncertain: Draw a card.

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

Target opponent chooses a creature card in your graveyard. Return the chosen card from your graveyard to your hand.

Choose one—
• Return target nonland permanent to its owner's hand.
• Put the bottom two cards of your library into your hand.

Trial 4 (As you cast this spell, an opponent of your choice may pay 4 life. If they don't, they fail the trial.)
Put target creature card from a graveyard onto the battlefield under your control. That creature gains haste. Sacrifice it at the beginning of the next end step unless the trial was failed.

Choose one—
• Destroy target land.
• Destroy target creature with flying.

Exile the bottom four cards of your library. Return a creature or enchantment card from among them to your hand. You gain life equal to its mana value.

When Reverence Seeker dies, you may return another target Knight card from your graveyard to your hand.

Reverent Flame deals 3 damage to target creature. Create three Idol tokens. (They're artifacts with “{1}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.”)

Counter target spell. Its controller draws a card.

Whenever a nontoken creature you control dies, you may pay that creature's mana cost. If you do, search your library for a card and put it into your hand, then shuffle.

Menace
Revive {3}{B} ({3}{B}, Exile this card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

Exile target nonbasic permanent. Search any number of graveyards, hands and libraries for any number of cards with the same name as that permanent and exile them. Then each player shuffles their libraries searched this way.

When Rework the Canvas enters the battlefield, purge. (Exile two cards that share a type from graveyards. If you do, draw a card.)
Whenever one or more cards are put into exile from anywhere, you gain 2 life and scry 1.

Counter target spell unless its controller pays {1}.
Metamorph {U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up and cast it at any time for its metamorph cost.)

Prowess

If you control a Mountain, you may sacrifice an Aura rather than pay this spell's mana cost.
Righteous Bolt deals 2 damage to any target.

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.

When Rise from Death enters the battlefield, exile all cards from your library. When Rise from Death is no longer on the battlefield, shuffle your graveyard into your library.
If you would draw a card, instead return a card from your graveyard to your hand. If you can't, you lose the game.
If a card would be put into your graveyard from anywhere, exile it instead.

Submerge all creature cards in graveyards. (To submerge a card, exile it, then put it on the battlefield face down under its owner's control as a 2/2 creature.)

Engorge (As this enters the battlefield, mill three cards, then exile a card from among the milled cards.)
When Risen Looter enters the battlefield, if it engorged a noncreature, nonland card, draw a card, then discard a card.

You can't draw cards.
{2}{R}: Exile the top card of your library. You may play it this turn.

Target creature gets -4/-4 until end of turn. When it dies this turn, create two 1/1 black Worm creature tokens.

When Ritesinger Shaman dies, each player discards a card.