All Slivers have ": If this permanent is on the battlefield, flip a coin. If you win the flip, exile this permanent and return it to the battlefield under its owner's control at the beginning of the next end step. If you lose the flip, sacrifice it."

Haste

Whenever you cast a noncreature spell, Frenzied Devils gets +2/+2 until end of turn.

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.

When Frenzied Gorespawn enters, for each opponent, goad target creature that player controls. (Until your next turn, those creatures attack each combat if able and attack a player other than you if able.)

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

Whenever you activate a boast ability, put a +1/+1 counter on Frenzied Raider.

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.)

Create a 3/3 green Beast creature token for each creature put into your graveyard from the battlefield this turn.

During your turn, Fresh-Faced Recruit has first strike.

, Sacrifice a red or white creature: Freyalise Supplicant deals damage to any target equal to half the sacrificed creature's power, rounded down.

+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.

Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Snow permanents don't untap during their controllers' untap steps.

Create a 2/2 white Monk creature token.

Coststorm (When you cast this spell, copy it for each different mana value among other spells and lands you've played this turn.)

Flying

When Friendly Ghost enters, target creature gets +2/+4 until end of turn.

When Friendly Teddy dies, each player draws a card.

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

Descend 4 — Frilled Cave-Wurm gets +2/+0 as long as there are four or more permanent cards in your graveyard.

Flash

When Frilled Mystic enters, you may counter target spell.

: Frilled Sandwalla gets +2/+2 until end of turn. Activate only once each turn.

Menace, reach

Frilled Sparkshooter enters with a +1/+1 counter on it if an opponent lost life this turn.

Whenever Frodo Baggins or another legendary creature you control enters, the Ring tempts you.

As long as Frodo is your Ring-bearer, it must be blocked if able.

Whenever Frodo, Determined Hero enters or attacks, you may attach target Equipment you control with mana value 2 or 3 to Frodo.

During your turn, prevent all damage that would be dealt to Frodo.

Enchant creature

When Frog Tongue enters, draw a card.

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

Enchant creature

Enchanted creature loses all abilities and is a blue Frog creature with base power and toughness 1/1. (It loses all other card types and creature types.)

Affinity for artifacts (This spell costs less to cast for each artifact you control.)

Haste

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

Devoid (This card has no color.)

At the beginning of your upkeep, create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add ."

, Sacrifice From Beyond: Search your library for an Eldrazi card, reveal it, put it into your hand, then shuffle.

Put target creature card from a graveyard onto the battlefield under your control with a corpse counter on it. You take the initiative. If that creature would leave the battlefield, exile it instead of putting it anywhere else.

Escape—, Exile five other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

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.)

Create three tapped 2/2 black Zombie creature tokens and you gain 3 life. If this spell's madness cost was paid, instead create X of those tokens and you gain X life.

Frontier Bivouac enters tapped.

: Add , , or .

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

When Frontier Seeker enters, 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>

Frost Marsh enters tapped.

: Add or .

Flying

: Frost Raptor gains shroud until end of turn. ( can be paid with one mana from a snow source. A creature with shroud can't be the target of spells or abilities.)

Flying

When Frost Trickster enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

As Frostboil Snarl enters, you may reveal an Island or Mountain card from your hand. If you don't, Frostboil Snarl enters tapped.

: Add or .

: Frostburn Weird gets +1/-1 until end of turn.

Sacrifice Frostling: It deals 1 damage to target creature.

This spell costs less to cast if you control a Giant or a Wizard.

When Frostpyre Arcanist enters, search your library for an instant or sorcery card with the same name as a card in your graveyard, reveal it, put it into your hand, then shuffle.

: Add .

: Until end of turn, Frostwalk Bastion becomes a 2/3 Construct artifact creature. It's still a land. ( can be paid with one mana from a snow source.)

Whenever Frostwalk Bastion deals combat damage to a creature, tap that creature and it doesn't untap during its controller's next untap step.

Reach (This creature can block creatures with flying.)

Whenever Frostweb Spider blocks a creature with flying, put a +1/+1 counter on Frostweb Spider at end of combat.

Flying

: Creatures you control gain flying until end of turn.

: Frozen Shade gets +1/+1 until end of turn.

Enchant creature

When enchanted creature dies, you gain X life and draw X cards, where X is its toughness.