msem-instigator

At the beginning of combat on your turn, gain control of target creature an opponent controls with power less than the greatest power among creatures you control until end of turn. Untap that creature. It gains haste until end of turn.

Whenever a creature dies, create a 1/1 red and green Warrior creature token if this is the first time this ability has resolved this turn. Otherwise, you draw a card and you lose 1 life.

Bleed {2}{U} (You may cast this spell for its bleed cost if an opponent has lost life this turn.)
Put target creature on top of its owner's library.

Fall of the Axe deals 3 damage to any target.

This spell costs {1} less to cast for each permanent sacrificed this turn.
Destroy target noncreature permanent.

Whenever you draw a card, put a quest counter on Fallback Plan.
Remove four quest counters from Fallback Plan and sacrifice it: Search your library for a card, put that card into your hand, then shuffle.

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

Enchant creature
Enchanted creature has flying and “Sacrifice a creature: This creature gets +2/+1 until end of turn.”
When Fallen Ideal is put into a graveyard from the battlefield, return Fallen Ideal to its owner's hand.

This spell costs {1} less to cast for each creature you control with power 4 or greater.
Reveal the top X cards of your library. You may cast any number of nonland cards with mana value X or less from among them without paying their mana costs. Put the rest into your graveyard.

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

Choose creature or land, or choose both if you control a creature with power 4 or greater. Reveal the top five cards of your library. Put all cards revealed this way with a chosen type into your hand and the rest into your graveyard.

Exile target creature or planeswalker, then for each counter on that permanent, you may put a counter of that kind on a permanent you control.

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

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

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.

Each player returns up to one creature card from their graveyard to their hand. Each opponent sacrifices a creature.

Create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)
Draw a card.

Fang Den Jaws enters tapped unless you played it from exile.
{T}: Add {R} or {G}.

Target opponent discards a card. If they can't, draw a card. (Then exile this card. You may cast the creature later from exile.)

This spell costs {3} less to cast if it targets a creature with mana value 2 or less.
Destroy target creature.

Tithe (As you cast this spell, you may tap three artifacts and/or creatures you control.)
Creatures can't attack this turn. If this spell's tithe was paid, opponents can't cast spells this turn.

Tithe (As you cast this spell, you may tap three artifacts and/or creatures you control.)
Faradia's Outrage deals X damage to any target. If this spell's tithe was paid, it deals X damage divided as you choose among any number of targets instead.

Exile target creature. Its controller loses 3 life.

Destroy target artifact or enchantment. You gain 1 life.