Indulgence
Whenever you indulge, choose one —
• Scry 2. Each opponent loses 2 life.
• Create a tapped 2/1 black Rogue creature token with menace.
• Target creature gets -2/-2 until end of turn.

Defender
When Feasting Sloth enters, create a Berry token.
Feasting Sloth can attack as though it didn't have defender if it's enchanted, equipped, or has a counter on it.

Once each turn, when you activate a nonmana ability, you may put a +1/+1 counter on Feeble Fish. Then if there are three or more +1/+1 counters on it, remove them all and transform it.

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

Enchant creature
Enchanted creature gets +2/+0 and has menace.
{2}{G}: Return Fenran Bloodlust from your graveyard to your hand.

When Field Worker enters, choose one —
• Surveil 2.
• Return target Aura card from your graveyard to your hand.

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.

Whenever an artifact you control enters, each opponent loses 1 life and you gain 1 life.

{T}: Fireslinger deals 1 damage to any target and 1 damage to you.

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 Whip deals 4 damage to target creature or planeswalker.

Experience
When Flame-Tailed Lizard has three or more +1/+1 counters on it, remove them all and transform it.

Flamethrower Volley deals 3 damage to target creature or planeswalker. Then you may pay {6}. If you do, Flamethrower Volley deals 6 damage to that permanent's controller.

As an additional cost to cast this spell, sacrifice a creature.
Flare Out deals damage to any target equal to the sacrificed creature's power.
Maneuver

Gain control of target creature with power 4 or less until end of turn. Untap that creature. It gains haste until end of turn.

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.

Target creature gets -3/-0 until end of turn.
Draw a card.

Fleshless Assailant enters tapped.
Whenever you cast a spell from your graveyard or a creature you control enters from a graveyard, return Fleshless Assailant from your graveyard to the battlefield at the beginning of the next end step.

{X}{G}, {T}, Sacrifice a nontoken creature: Create a token that's a copy of the sacrificed creature, except it's a Horror in addition to its other types and has base power and toughness X/X. Activate only as a sorcery.

For each permanent type, you may play a card with that type from your graveyard this turn.

Enchant creature
Enchanted creature gets +2/+2.
{4}{G}: Enchanted creature gets +3/+3 and gains trample until end of turn.

Devoid
Draw a card. You may put a basic land card from your hand onto the battlefield tapped.
Coalesce {5}{G}{G}

Enchant creature you control
Enchanted creature gets +1/+1.
When this Aura enters, enchanted creature fights up to one target creature.

Flash
{1}{U}: Flowsilver Adept gets +2/-2 until end of turn.