mtg.wtf

Whenever an opponent activates an ability that isn't a mana ability, Flamescroll Celebrant deals 1 damage to that player.
{1}{R}: Flamescroll Celebrant gets +2/+0 until end of turn.

You may discard a Mountain card rather than pay this spell's mana cost.
Flameshot deals 3 damage divided as you choose among one, two, or three target creatures.

Flying
Flameskull can't block.
Rejuvenation — When Flameskull dies, exile it. If you do, exile the top card of your library. Until the end of your next turn, you may play one of those cards.

Discard a card, then draw a card. When you discard an instant or sorcery card this way, Flamethrower Sonata deals damage equal to that card's mana value to target creature or planeswalker you don't control.

When Flametongue Kavu enters, it deals 4 damage to target creature.

Whenever a nontoken creature enters under your control, that creature deals X damage to target creature, where X is a number chosen at random from 0 to 4.

When Flaming Fist Duskguard enters the battlefield, you get a boon with "When you cast your next creature spell, it perpetually gets +1/+0."

Whenever another creature you control leaves the battlefield, put a +1/+1 counter on Flaming Fist Officer.

Damage can't be prevented this turn.
Flashback {R}

Choose one —
• Destroy target red permanent.
• Return target Mountain to its owner's hand.

Destroy all Plains.

Whenever Flaxen Intruder deals combat damage to a player, you may sacrifice it. When you do, destroy target artifact or enchantment.

Devoid
All creatures get -2/-2 until end of turn. If a creature would die this turn, exile it instead.

Flying
At the beginning of your upkeep, Fledgling Djinn deals 1 damage to you.

When Fleeting Memories enters, investigate.
Whenever you sacrifice a Clue, target player mills three cards.

Flying
Infect
Sacrifice a creature: Flesh-Eater Imp gets +1/+1 until end of turn.

When Fleshbag Marauder enters, each player sacrifices a creature.

Flying
When Flickerwisp enters, exile another target permanent. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Enchant creature
Enchanted creature has flying.

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

{U}{U}: Tap target creature without flying.

Flood Plain enters tapped.
{T}, Sacrifice Flood Plain: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

{T}, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.

{3}, {T}: Investigate.

{X}{X}{1}, {T}: Tap X target lands.