msem-instigator

Destroy target nonland permanent with mana value less than or equal to the number of cards in your graveyard.

Target player discards a card and loses 2 life.
Draw a card.

{T}: Add {B} or {R}. You lose 1 life unless you have less life than an opponent.

Destroy each nonland permanent with mana value 6 or less. If a creature would die this way, exile it instead.

When Forbidden Shiangshi Arts enters, each player mills three cards.
{2}{B}: Exile target creature card from a graveyard. Create a tapped token that's a copy of that card, except it has “When this creature deals damage, sacrifice it.”

Counter target instant or sorcery spell. Search its owner's graveyard, hand, and library for any number of cards with the same name as that spell and exile them. That player shuffles their library, then draws a card for each card exiled from their hand this way.

As an additional cost to cast this spell, discard a card.
Search your library for a card with mana value X or less, where X is 1 plus the discarded card's mana value, reveal it, put it into your hand, then shuffle.

Return target instant or sorcery card from your graveyard to your hand. Forbidden Wisdom deals damage to up to one target creature or planeswalker equal to that card's mana value.
Exile Forbidden Wisdom.

Forbidding Isle enters tapped unless you control a Swamp.
{T}: Add {U} or {R}.

Put target creature with power X or less on top of its owner's library.
Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

Counter target spell. If a permanent spell is countered this way, create a token that's a copy of that card except it's a colorless creature, it's 2/2, and it's a Plant in addition to its other types.

Tap up to two target creatures. Scry 1. (To scry 1, look at the top card of your library. You may put that card on the bottom of your library.)

Exile target creature, then exile target creature card from a graveyard. An opponent chooses one of them. Put the chosen card onto the battlefield under your control.

Harvest (You may tap any number of creatures you control as you cast this spell. If you do, reduce this spell's mana cost by their total power.)
Each opponent sacrifices a nontoken permanent.

Destroy target artifact or enchantment. Create a 1/1 green Saproling creature token.

Equipped creature gets +1/+1.
Sacrifice Forceglow Shield: Prevent all damage a source of your choice would deal to equipped creature this turn.
Equip {2}

If a spell, ability, or creature an opponent controls would deal 4 or more damage to you or cause you to lose 4 or more life, you lose 4 life instead. (Damage won't be dealt.)

At the beginning of each combat, prevent all combat damage that would be dealt to and dealt by up to one target creature this turn.
{X}{G}{U}, Sacrifice Foreboding Calm: Create an X/X green and blue Plant Horror creature token with hexproof and trample.

Whenever a player casts a spell, put a doom counter on Foreboding Presence.
At the beginning of each player's end step, if no spells were cast this turn, sacrifice Foreboding Presence. It deals damage equal to the number of doom counters on it to that player.

As Foreboding Ruins enters, you may reveal a Swamp or Mountain card from your hand. If you don't, Foreboding Ruins enters tapped.
{T}: Add {B} or {R}.

{2}, Exile a card with a cycling ability from your graveyard: Draw a card.
Cycling {3}{G} ({3}{G}, Discard this card: Draw a card.)
When you cycle Foregone Ancestries, you may exile it. If you do, return target card with a cycling ability from your graveyard to your hand.

Enchant player
At the beginning of enchanted player's upkeep, up to two target creatures they control gain winnow until end of turn. (Damage dealt to a creature with winnow also causes its controller to lose that much life.)

As an additional cost to cast this spell, reveal an instant card from your hand or pay {2}.
Counter target spell with mana value 4 or less.

Reveal the top card of your library. You may put it on the bottom of your library. Target creature gets -X/-0 until end of turn, where X is that card's mana value.