msem-instigator

Choose one —
• The next spell you cast this turn has flash and can't be countered.
• Target creature gets +2/+0 and gains haste until end of turn.
• Target creature gets +1/+0 and gains first strike until end of turn.

Exile target spell or nonland permanent. That card's owner casts it without paying its mana cost at the beginning of the next turn's upkeep.

At the beginning of your upkeep, each player loses 3 life unless they sacrifice a creature.
Sacrifice a creature: Fateseal 1. (Look at the top one cards of an opponent's library, then put any number on the bottom and the rest on top in any order.)

Exile target creature you control and each creature blocking or blocked by it.

When Fading Prison enters, exile target creature until Fading Prison leaves the battlefield.
{W}, Sacrifice Fading Prison: Exile target creature you control, then return that card to the battlefield under its owner's control.

Lifelink, haste
At the beginning of your end step, Fae-Frill Fox deals X damage to target player, where X is the number of times you gained life this turn.

As an additional cost to cast this spell, sacrifice a creature.
Create three 1/1 black Worm creature tokens.

{U}, Discard a card: Counter target spell unless its controller pays {1}.
Whenever a spell or ability you control counters a spell or ability, you get a glory counter. (You lose glory counters before life. A player with ten or more glory counters wins the game.)

Revive abilities of cards in your graveyard cost {1} less.
Sacrifice Fallow Grave: Create a 1/1 black Worm creature token.

{W}, {T}: Target creature doesn't untap during its controller's next untap step.

Enchant creature
Enchanted creature gets +3/+0 and has menace.

As an additional cost to cast this spell, return a creature you control to its owner's hand.
Counter target spell.

Codex — Fox of the Orange Orchard; Sludge-Gill Fox; Thundermane Fox; Firemane Fox; Sun-Eyed Fox; Moon-Rune Fox; Leafcrowned Fox; Icecrowned Fox; Fae-Frill Fox. (As this enters, conjure its contents into a shuffled face-up additional library.)
You may spend mana as though it were mana of any color to cast this codex's contents.
Whenever a Fox you control enters, you gain 1 life.

Fardancer Liege's power and toughness are each equal to the number of colors of mana that lands you control could produce.

Exile target creature. Its controller loses 3 life.

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

When Fatethief dies, put the bottom card of your library into your hand.
Revive {2}{B}{B} ({2}{B}{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.)

When Fatetwist Shaman dies, reveal the bottom card of your library. You may put it on top of your library.

Target player gains control of target ability or nonpermanent spell. You may choose new targets for it.

Flying
{1}{U}, Sacrifice Fatewrench: Fateseal 2. (To fateseal 2, look at the top two cards of an opponent's library, then put any number of them on the bottom of that player's library and the rest on top in any order.)

Whenever you cast a spell that doesn't share a color with Feathered Warden, you may gain 1 life.

Return target spell or creature to its owner's hand. If you controlled that spell or creature, catalyze. (The next spell you cast this turn costs {1} less to cast.)

Feed to the Pigs deals X damage to any target. You gain X life.