Flying

When Foul Watcher enters the battlefield, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Delirium — Foul Watcher gets +1/+0 as long as there are four or more card types among cards in your graveyard.

As an additional cost to cast this spell, you may reveal a Dragon card from your hand.

Target player sacrifices a creature. If you revealed a Dragon card or controlled a Dragon as you cast this spell, you gain 4 life.

When Foundation Breaker enters the battlefield, you may destroy target artifact or enchantment.

Evoke (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

First strike

Equipped creature has first strike.

At the beginning of your upkeep, a random artifact card in your hand perpetually gains "This spell costs less to cast."

Reconfigure (: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Artifact spells you cast cost less to cast.

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

: Add one mana of any color.

: Fountain of Ichor becomes a 3/3 Dinosaur artifact creature until end of turn.

, : You gain 1 life.

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

When Fractal Harness enters the battlefield, 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

, : Return target card with a ½ on it from your graveyard to your hand.

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

: Add .

: Roll the planar die. Activate only as a sorcery.

Destroy all artifacts and enchantments. You gain 2 life for each permanent destroyed this way.

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

As Frankenstein's Monster enters the battlefield, exile X creature cards from your graveyard. If you can't, put Frankenstein's Monster into its owner's graveyard instead of onto the battlefield. For each creature card exiled this way, Frankenstein's Monster enters the battlefield with a +2/+0, +1/+1, or +0/+2 counter on it.

Frantic Firebolt deals X damage to target creature, where X is 2 plus the number of cards in your graveyard that are instant cards, sorcery cards, and/or have an Adventure.

Destroy target enchantment.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Haste

When Frantic Scapegoat enters the battlefield, suspect it. (It has menace and can't block.)

Whenever one or more other creatures enter the battlefield under your control, if Frantic Scapegoat is suspected, you may suspect one of the other creatures. If you do, Frantic Scapegoat is no longer suspected.

Each player loses half their life, then discards half the cards in their hand, then sacrifices half the creatures they control. Round up each time.

Protection from wordy (Something is wordy if it has four or more lines of rules text.)

Enchant creature

: Tap enchanted creature.

: Untap enchanted creature.

Freestrider Commando enters the battlefield with two +1/+1 counters on it if it wasn't cast or no mana was spent to cast it.

Plot (You may pay and exile this card from your hand. Cast it as a sorcery on a later turn without paying its mana cost. Plot only as a sorcery.)

Flying

As long as Freewind Equenaut is enchanted, it has ": Freewind Equenaut deals 2 damage to target attacking or blocking creature."

Flying

: Flip a coin. If you win the flip, Frenetic Efreet phases out. If you lose the flip, sacrifice Frenetic Efreet. (While it's phased out, it's treated as though it doesn't exist. It phases in before you untap during your next untap step.)

Beasts can't block.

Prowess

When Frenzied Geistblaster enters the battlefield, 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.

Haste

All creatures can attack your opponents and planeswalkers your opponents control as though those creatures had haste.

, Sacrifice Frenzied Trapbreaker: Destroy target artifact or enchantment.

Whenever Frenzied Trapbreaker attacks, destroy target artifact or enchantment defending player controls.

Nightbound (If a player casts at least two spells during their own turn, it becomes day next 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.

+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.

Counter target spell unless its controller pays . That player discards a card.

Enrage — Whenever Frilled Deathspitter is dealt damage, it deals 2 damage to target opponent or planeswalker.

: Frilled Sea Serpent can't be blocked this turn.

Partner with Sam, Loyal Attendant

Vigilance

Whenever Frodo, Adventurous Hobbit attacks, if you gained 3 or more life this turn, the Ring tempts you. Then if Frodo is your Ring-bearer and the Ring has tempted you two or more times this game, draw a card.

Enchant creature

When Frog Tongue enters the battlefield, draw a card.

Enchanted creature has reach. (It can block creatures with flying.)

When CARDNAME enters the battlefield, target opponent reveals their hand. Choose a nonland card from it. Ransom that card. (Exile it. Its owner may pay at any time to return it to their hand.)

Haste

Goblin spells and Rogue spells you cast cost less to cast.

Destroy all nonbasic lands. For each land destroyed this way, its controller may search their library for a basic land card and put it onto the battlefield. Then each player who searched their library this way shuffles.

As From the Rubble enters the battlefield, choose a creature type.

At the beginning of your end step, return target creature card of the chosen type from your graveyard to the battlefield with a finality counter on it. (If a creature with a finality counter on it would die, exile it instead.)

Frontier Bivouac enters the battlefield tapped.

: Add , , or .

, : Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

When Frontier Seeker enters the battlefield, look at the top five cards of your library. You may reveal a Mount creature card or a Plains card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Whenever one or more creatures attack one of your opponents or a planeswalker they control, those creatures gain menace until end of turn.

Battalion — Whenever Frontline Medic and at least two other creatures attack, creatures you control gain indestructible until end of turn.

Sacrifice Frontline Medic: Counter target spell with in its mana cost unless its controller pays .

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

, : Draw a card, then discard a card.

, : Look at the top card of your library. If it's a snow card, you may reveal it and put it into your hand. ( can be paid with one mana from a snow source.)

Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.

Rampage 2 <I>(Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)</I>