msem-instigator

Vanishing 3 (This creature enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When Fickleflame Summon enters or leaves the battlefield, draw a card, then discard a card.

Flying
Vanishing (At the beginning of your upkeep, remove a time counter from this permanent. When the last is removed, sacrifice it.)
Ficklewing Elemental enters with a time counter on it for each card in your hand.

Target creature gets +2/+2 and gains trample until end of turn.

Reprise {3}{U} (As you cast an instant or sorcery spell, you may exile one card with reprise from your graveyard and pay its reprise cost. If you do, add its effects to that spell.)
Scry 3, then draw a card.

Flame Jolt deals 2 damage to target creature and 1 damage to target player or planeswalker.

First strike (This creature deals combat damage before creatures without first strike.)
Whenever you cast an instant or sorcery spell, Flamemaster Insurgent gets +X/+0 until end of turn, where X is that spell's mana value.

{2}: Equipped creature gets +1/+0 until end of turn.
Equip {1}

Flying
When Fleeting Distractor enters, sacrifice it unless you return another creature you control to its owner's hand.

{3}{B}: Regenerate Flesh Hoarder Ghoul. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

As an additional cost to cast this spell, exile a creature card from your graveyard.

{1}{B}, Discard a creature card: Draw a card.
{1}{B}, {T}, Exile a creature card from your graveyard: Create a tapped 2/2 black Zombie creature token.

Flying (This creature can't be blocked except by creatures with flying or reach.)
At the beginning of your upkeep, put a +1/+1 counter on Fleshrender Demon and you lose 1 life.

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

({T}: Add {U} or {B}.)
Flooded Morass enters tapped unless you control a basic Island or a basic Swamp.

As Floodwater Depths enters, you may pay 2 life. If you don't, Floodwater Depths enters tapped.
{T}, Sacrifice Floodwater Depths: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

({T}: Add {R} or {G}.)
Flourishing Crevasse enters tapped unless you control a basic Mountain or a basic Forest.

Vanishing 3 (This creature enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When Fogborn Mauler enters or leaves the battlefield, you gain 2 life.

Destroy each nonland permanent with mana value 6 or less. If a creature would die this way, exile it instead.

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.)

Exile target creature, then exile target creature card from a graveyard. An opponent chooses one of them. Put the chosen card onto the battlefield under your control.

Hexproof

Attacking creatures you control have “{R}: This creature gets +1/+0 until end of turn.”
Armed — Whenever Forgeborn Barbarian attacks, add {R} for each equipped creature you control.

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

Enchant creature
Enchanted creature gets +2/+2 and has flying and haste.
When enchanted creature dies, return it to the battlefield under its owner's control.