mtg.wtf

Flying
When Foundry Hornet enters, if you control a creature with a +1/+1 counter on it, creatures your opponents control get -1/-1 until end of turn.

Artifact spells you cast cost {1} less to cast.

Flying
Foundry Screecher gets +1/+0 as long as you control an artifact.

Whenever another red creature you control enters, Foundry Street Denizen gets +1/+0 until end of turn.

Offspring {1}
When Fountainport Charmer enters, creature cards in your hand perpetually gain "This spell costs {1} less to cast."

When Fourth Bridge Prowler enters, you may have target creature get -1/-1 until end of turn.

When Fractal Harness enters, create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it and attach Fractal Harness to it.
Whenever equipped creature attacks, double the number of +1/+1 counters on it.
Equip {2}

Destroy target artifact, enchantment, or planeswalker.

Exile target nonland permanent. Each player other than its controller creates a token that's a copy of it.

Exile target nontoken artifact, creature, or enchantment an opponent controls. Its controller puts a random creature card with lesser mana value from their library onto the battlefield tapped.

Destroy target artifact or enchantment with mana value 4 or less.

Draw two cards, then discard two cards. Untap up to three lands.

When Fraying Line enters, put a rope counter on target creature you control.
At the beginning of each player's upkeep, that player may pay {2}. If they do, they put a rope counter on a creature they control. Otherwise, exile Fraying Line and each creature without a rope counter on it, then remove all rope counters from all creatures.

Improvise
Flying
{1}{R}: Freejam Regent gets +2/+0 until end of turn.

Each permanent you control has phasing.
At the beginning of your end step, flip a coin. If you win the flip, take an extra turn after this one.

Enchant permanent
When Frenzied Fugue enters and at the beginning of your upkeep, gain control of enchanted permanent until end of turn. Untap that permanent. It gains haste until end of turn.

Prowess
When Frenzied Geistblaster enters, if there are twenty or more instant and/or sorcery cards among cards in your graveyard, hand, and library, you may discard a card. If you do, seek an instant or sorcery card.

Whenever Frenzied Goblin attacks, you may pay {R}. If you do, target creature can't block this turn.

Fretwork Colony can't block.
At the beginning of your upkeep, put a +1/+1 counter on Fretwork Colony and you lose 1 life.

Whenever a permanent becomes tapped, put a wind counter on it.
If a permanent with a wind counter on it would untap during its controller's untap step, remove all wind counters from it instead.

[+2]: Create a 1/1 green Elf Druid creature token with "{T}: Add {G}."
[–2]: Destroy target artifact or enchantment.
[–6]: Draw a card for each green creature you control.
Freyalise, Llanowar's Fury can be your commander.

[+1]: Untap up to one target Elf. That Elf and a random Elf creature card in your hand perpetually get +1/+1.
[–1]: Seek an Elf card.
[–6]: Conjure a card named Regal Force onto the battlefield.

{5}{U}{U}: Frilled Sea Serpent can't be blocked this turn.

Trample, haste
Whenever Froghemoth deals combat damage to a player, exile up to that many target cards from their graveyard. Put a +1/+1 counter on Froghemoth for each creature card exiled this way. You gain 1 life for each noncreature card exiled this way.

Vigilance
Creatures you control with vigilance have "{1}, {T}: Tap target creature."