msem-instigator

Whenever Fleshwarper or another Horror you control dies, each opponent loses 1 life and you gain 1 life. You may mill a card.

Target creature you control deals damage equal to its power to target creature you don't control. Scry 1.

Put a +1/+1 counter on target creature. That creature gains first strike until end of turn.

Enchant creature
Enchanted creature gets +2/+2.
Kindle 2—{2}{W} ({2}{W}, Exile this card from your graveyard: Create two 1/1 colorless Elemental creature tokens. Kindle only as a sorcery.)

Flash
Flying
Whenever another Spirit you control enters, put a +1/+1 counter on Flickers in the Night.

Enchant creature
When Flight of Fancy enters, draw two cards.
Enchanted creature has flying.

Lifelink
Pay 3 life: Flightful Fledgling gains flying until end of turn.

Whenever another creature you control enters, Flightpath Trainee gains flying until end of turn.

Flash
{6}: Target creature gains flying until end of turn.

Heroic — Whenever you cast a spell that targets Floodspeaker Triton, put a +1/+1 counter on Floodspeaker Triton, then scry 1.

({T}: Add {G}.)
As Flourishing Dunes enters, you may pay 1 life. If you don't, Flourishing Dunes enters tapped.

Flourishing Forest enters tapped.
As Flourishing Forest enters, choose a basic land type.
Flourishing Forest is the chosen type in addition to its other types.

Flourishing Island enters tapped.
As Flourishing Island enters, choose a basic land type.
Flourishing Island is the chosen type in addition to its other types.

Flourishing Mountain enters tapped.
As Flourishing Mountain enters, choose a basic land type.
Flourishing Mountain is the chosen type in addition to its other types.

Flourishing Plains enters tapped.
As Flourishing Plains enters, choose a basic land type.
Flourishing Plains is the chosen type in addition to its other types.

Flourishing Swamp enters tapped.
As Flourishing Swamp enters, choose a basic land type.
Flourishing Swamp is the chosen type in addition to its other types.

Untap target creature you control. It gains hexproof until end of turn.

Trample
Heretic (Whenever you cast a spell that doesn't share a color with this creature, it gets +1/+1 until end of turn.)

{T}: Add {C}.
{T}, Sacrifice Fluctuating Locale: Rediscover a land card. (Look at the top card of your library. You may reveal it and put it into your hand if it's a land card. Otherwise, put it back or into your graveyard.)

Create three 1/1 green Elk Rabbit creature tokens.
Menagerie — If there are five or more creature types among creatures you control, you may search your library for a card named Fluffpuff Frenzy, reveal it, put it into your hand, then shuffle.

When Flying Throne enters, attach it to target creature you control.
Equipped creature gets +1/+0 and has flying.
Equip {2}

This spell has flash as long as you control a creature with flash or haste.
Discard up to two cards, then draw that many cards plus one.

Equipped creature gets +1/+1.
{1}: Equipped creature gains indestructible until end of turn. Sacrifice Focus Sash.
Equip {1}

Draw three cards, then put a card from your hand on the bottom of your library.

When Fodder Goblins enters, create a 1/1 red Goblin creature token.