msem-instigator

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.

Menace
Each opponent's maximum hand size is reduced by the number of counters on Fahrib's Lieutenant.
Whenever an opponent discards a card, put a +1/+1 counter on Fahrib's Lieutenant.

Transcend (Activate as a sorcery to gain the next type and a +1/+1 counter.)
You may play cards exiled with Fahrib and you may spend mana as though it were mana of any color to play them.
{U}{B}: Demon — Each player exiles a card from their hand.
{4}{U}{B}: Elder — Exile the top five cards of each player's library. Fahrib gains “Spells you cast from anywhere other than your hand cost {2} less to cast.”

Whenever Failed Martyr attacks, each other attacking creature gets +1/+0 until end of turn.
Attain {4}{W} ({4}{W}: Transform this. Spend at least three colors of mana to activate this, and only as a sorcery.)

Other Elemental creatures you control get +1/+0.

Flying, first strike
If one or more tokens would be created under your control, those tokens plus a 1/1 black and red Vampire creature token with menace are created instead.
{3}{B}{B}: Each opponent loses X life and you gain X life, where X is the number of Vampires you control.

Flying
Falkenrath Ordainer has lifelink as long as you control a token.

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.

{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.)

{3}{G}: Fallen Forest Wolf gets +2/+2 and gains trample until end of turn. Activate only once each turn.

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

Whenever you gain life, target opponent loses that much life.
{T}, Pay 3 life: Flip a coin. If you win the flip, you gain 6 life.

Voracious 2 (As this enters, you may sacrifice up to two artifacts and/or creatures. This creature enters with that many +1/+1 counters on it.)
Vigilance, haste
{T}: Add {G}. If a creature died under your control this turn, add {G}{G} instead.

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.)

Trample
At the beginning of combat on your turn, create a 1/1 red Lizard Warrior creature token with haste and winnow. (Damage dealt to that token also causes you to lose that much life.)
Whenever Fang of Anaz attacks, it gets +1/+0 for each other attacking Lizard you control until end of turn.

Poisonous 2 (Whenever this creature deals combat damage to a player, that player gets two poison counters.)
Snakes you control get +1/+1 and have poisonous 1. (Multiple instances of poisonous trigger separately.)

Whenever Fangs of Wesgoth deals combat damage to a player, create a Weapon token. (It's an Equipment artifact with “Equipped creature gets +1/+1” and equip {2}.)
As long as you control three or more artifacts, Fangs of Wesgoth has menace.

First strike
When Faradia's Collector enters, if an opponent controls more lands than you, create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

Flying, ward {2}
Whenever Faraway Albatross attacks, choose one —
• Faraway Albatross gets +1/+1 until end of turn for each spell you've cast this turn.
• Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

At the beginning of your end step, if a counter was put on a permanent you control or controlled this turn, draw a card.

When Fateshifter's Prophet enters, you gain 2 life and scry 2.

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.

Gestalt (When this or another creature enters under your control, you may merge it with the one in play, keeping counters and attachments. They become the permanent on top plus all abilities from under it.)
This creature gets +2/+2 as long as it's merged with another card or token.