Flash
When Fencer's Foil enters, you may attach it to target creature you control.
Equipped creature gets +2/+0.
Equip {3}

Whenever Fencing Master attacks, you may pay {R}. If you do, put a double strike counter on another target attacking creature.
{1}{R}: Target creature you control gets +1/+0 until end of turn.

Whenever you amp it up, put a +1/+1 counter on Ferva Sensation.
Remove two counters from Ferva Sensation: It phases out.

Mill X cards. For each land card milled this way, add {B}{B}. For each creature card milled this way, create a 2/2 black Zombie artifact creature token. For each noncreature, nonland card milled this way, draw a card.

Flying
{2}, Discard Fiefwatcher Gargoyle: Search your library for a basic Plains card, reveal it, put it into your hand, then shuffle.

{T}: You may look at two additional cards the next time you scry this turn.
{W}, {T}: Until end of turn, creatures can't attack you or a planeswalker you control unless their controller pays {1} for each of those creatures.

Field Laboratory enters tapped.
{T}: Add {G} or {U}.
{1}, Discard Field Laboratory: Scry 2.

Trample
Whenever you gain control of a permanent you don't own or a permanent you don't own enters under your control, it and Field Opportunist each get +2/+0 and gain haste until end of turn.

Choose up to two —
• Each creature gets -X/-X until end of turn.
• Each opponent discards X cards.
• You draw X cards and you lose X life.
• Create an X/X black Zombie Horror creature token with menace.

Choose one or both —
• Target Kraken, Leviathan, Octopus, or Serpent creature you control gets +2/+1 until end of turn.
• Target creature you control fights target creature you don't control.

Destroy target creature if its mana value is less than or equal to the amount of mana spent to cast this spell.
Flashback {X}{B}{B}{B}

Final Performance deals 2 damage to target creature. If a creature died this turn, instead Final Performance deals 5 damage to it, and excess damage is dealt to that creature's controller instead.

Firebolt deals 2 damage to any target.
Flashback {4}{R}

When Firebrand Disciple enters, you may exile an instant or sorcery card from your graveyard. If you do, draw a card.

Draw a card. If you control no creatures, create a 1/1 colorless Cyborg artifact creature token.

When Flags on High enters, create two 1/1 colorless Soldier creature tokens.
{1}{R}, Sacrifice Flags on High: Target creature you control gets +1/+0 and gains haste until end of turn. Activate only as a sorcery.

Flame Lash deals 4 damage to any target.

Reach
{3}{R/G}: Flametip Goliath gets +2/+0, gains trample, and becomes a Giant in addition to its other types until end of turn.

As long as its not your turn, spells you cast cost {1} less to cast.

Haste
Whenever a player casts a spell, if no mana from a basic source was spent to cast it, Flaw in the System deals 2 damage to that player.

Whenever a creature dealt damage by Fleshbearer this turn dies, integrate that creature.
Fleshbearer gets +2/+0 and has menace as long as a creature card is integrated onto it.

Approval — When Flock Favorites enters, exile the top X cards of your library, where X is the number of colors among permanents you control. Until the end of your next turn, you may play those cards.

Flooded Morass enters tapped unless you control a basic Island or a basic Swamp.

Vigilance, lifelink
Revolt — At the beginning of your end step, if a permanent you controlled left the battlefield this turn, you may exile target permanent card with mana 2 or less from your graveyard. If you do, create a tapped token that's a copy of that card.

Flourishing Crevasse enters tapped unless you control a basic Mountain or a basic Forest.