msem-instigator

Wu Xing (Add effects based on the number of colors of mana spent to cast this spell.)
1 | Each creature deals damage to itself equal to its power.
3 | You gain life equal to the excess damage dealt this way.
5 | Each opponent loses that much life.

{1}{U}, {T}: Draw a card, then discard a card.

As an additional cost to cast this spell, sacrifice a creature.
Draw two cards. Create a tapped Treasure token.

Target creature gains haste until end of turn.
Draw a card.

Return to your hand target creature card in your graveyard that was put there from anywhere this turn.
Create a 2/1 black Spirit creature token with “This creature can't block.”

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
Target creature you control gets +1/+0 until end of turn if you're in a renaissance. Then that creature deals damage equal to its power to target creature you don't control.

When Fabled Chishou enters, create a token that's a copy of it, except it doesn't have this ability.
At the beginning of each end step, if Fabled Chishou isn't in a pack, sacrifice it. (Two or more creatures you control with equal power are in a pack.)

(Choose only one work as a sorcery to add its ability.)
When Fables of the Ill-Fated enters, destroy target nonland permanent.
{B}: The Witch's Temple
Whenever a nonland permanent you control dies, each opponent loses 1 life.
{3}{G}: Enter the Nest
{3}{G}, Sacrifice two lands: Create a 0/0 green Wurm creature token with “This creature gets +1/+1 for each permanent card in your graveyard.” Activate only as a sorcery.

When Fallen Dynasty Jailer enters, target opponent exiles a card from their hand. When Fallen Dynasty Jailer is no longer on the battlefield, the exiled card's owner puts it on the top or bottom of their library.

Flash
Flying
When Fang Luo enters, exile target spell or creature an opponent controls with mana value 4 or less, then its owner puts it onto the battlefield face down. (It's a 2/2 creature.)

Wu Xing (Add effects based on the number of colors of mana spent to cast this spell.)
1 | Mill five cards. An opponent separates the milled cards into two piles. Put one pile into your hand.
5 | You may cast a nonland card from the other pile without paying its mana cost.

{2}{R}{R}, Exile an instant or sorcery card from your graveyard: Fervid Dragonheart gets +1/+2, gains flying, and becomes a Dragon until end of turn.

When Festival Celebrants enters, put a +1/+1 counter on each creature you control.

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
{T}: Add {C}. If you're in a renaissance, add one mana of any color instead.
{3}, {T}: Scry 1.

Inspired — Whenever Festival Decorator becomes untapped, draw a card.

Choose one —
• Target attacking creature gets +2/+2 until end of turn.
• Destroy target artifact.

Fiendish Yaoguai can't block.
Scavenge {5}{B} ({5}{B}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)

Wu Xing (Add effects based on the number of colors of mana spent to cast this spell.)
1 | Fiery Portent deals 5 damage to target creature or planeswalker.
3 | Surveil 3.

Choose one —
• Return target permanent card from your graveyard to your hand.
• Destroy target artifact or enchantment.

Target creature gains double strike until end of turn.
Showcase {2}{R}{R} (Then if you cast this for its showcase cost, create a 1/1 red Bard creature token that can't block and exile this. Whenever it attacks, you may cast a free copy of this.)

Choose target creature you control, then choose two —
• Put a +1/+1 counter on it.
• Put a first strike counter on it.
• Put a trample counter on it.

Fires of Renewal deals 2 damage to each creature.
Create a Treasure token.

When Flame Juggler dies, it deals 3 damage to each opponent.

Once each turn, when you cast an instant or sorcery spell, you may exile the top two cards of your library if you cast it for its showcase cost, otherwise, look at the top two cards of your library, then put one on the bottom of your library and exile the other. You may play cards exiled this way until you exile one or more other cards with For the Court of the Queen.

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