msem-instigator

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.

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.)

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.

{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.

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.

Forest Fire deals 4 damage to target creature or planeswalker. (Then exile this card. You may cast the creature later from exile.)

Target creature gets +2/+2 until end of turn. If you cast this spell from exile, that creature gets +4/+4 and gains trample until end of turn instead.
Prophecy {G} (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.)

Heroic — Whenever you cast a spell that targets Forge Adept, create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)
{6}{R}: Create a 3/3 colorless Golem enchantment artifact creature token. If mana from an artifact was spent to activate this ability, that token gains haste.

Choose one —
• Forgemaster's Charm deals X damage to target creature.
• Destroy X target artifacts.
• Create an X/X colorless Juggernaut artifact creature token.

Search your library for an Equipment card, reveal it, put it into your hand, then shuffle.

{T}, Sacrifice Forgewatcher: Add two mana of any one color. If that mana is spent on a creature spell, it gains haste until end of turn.

{1}: Exile target card from a graveyard. That card's owner may scry 1.

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

Put target land card from a graveyard onto the battlefield under your control.

As Forgotten Idol enters, choose a card name.
Spells with the chosen name can't be cast.
{2}, Exile a card with the chosen name from your hand: Exile Forgotten Idol, then each player draws a card. Any player may activate this ability.

{B}{R}, Sacrifice a creature: Create a token that's a copy of Forlorn Companion, except it has no mana cost.

When Forlorn Farmhand dies, create a 1/1 colorless Spirit creature token.

When Forlorn Murklurker dies, submerge the top card of your library. (To submerge a card, exile it, then put it on the battlefield face down under its owner's control as a 2/2 creature.)

Flash
Enchant creature
Enchanted creature has erratic. (When this creature dies, reveal the top four cards of your library. Put a creature card that costs less than this revealed this way onto the battlefield and the rest on the bottom of your library in any order.)

Equipped creature gets +0/+2 and has flying.
Equip {2}

Bulwark — At the beginning of each upkeep, if you control a creature with toughness 4 or greater, Fortress Sentinel gains hexproof until end of turn.

Whenever two or more creatures you control deal combat damage to a player, you gain 3 life and create a Treasure token. (It's an artifact with “{T}, Sacrifice this permanent: Add one mana of any color.”)
Whenever you sacrifice your second permanent each turn, you draw a card and you lose 1 life.