Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)

When Ertai's Familiar phases out or leaves the battlefield, mill three cards.

: Until your next upkeep, Ertai's Familiar can't phase out.

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

, Sacrifice Escape Tunnel: Target creature with power 2 or less can't be blocked this turn.

When you cycle Esper Sojourners or it dies, you may tap or untap target permanent.

Cycling (, Discard this card: Draw a card.)

+2: Untap each enchanted permanent you control.

−1: Create a white Aura enchantment token named Mask attached to another target permanent. The token has enchant permanent and umbra armor.

−7: Mill seven cards. Return all non-Aura enchantment cards from your graveyard to the battlefield, then do the same for Aura cards.

Estrid, the Masked can be your commander.

2 — Whenever this creature deals combat damage to a player, exile target creature you control, then return it to the battlefield under its owner's control.

3 — : Untap another target permanent.

3 — 4/4

5 — 7/8

Enchant creature

When Eternity Snare enters, draw a card.

Enchanted creature doesn't untap during its controller's untap step.

Flying

, : Destroy target creature or enchantment.

: Untap Ethersworn Adjudicator.

Everglades enters tapped.

When Everglades enters, sacrifice it unless you return an untapped Swamp you control to its owner's hand.

: Add .

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Flying

Whenever this creature mutates, create a red artifact token named Feather with ", Sacrifice Feather: Return target Phoenix card from your graveyard to the battlefield tapped."

, : Tap target creature and put a +1/+1 counter on it. Until end of turn, that creature gains ": Double the number of +1/+1 counters on this creature."

Excavation Explosion deals 3 damage to any target. Create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

Exile target tapped creature.

Look at the top six cards of your library. Put up to two land cards from among them onto the battlefield tapped and the rest on the bottom of your library in a random order. If you put fewer than two lands onto the battlefield this way, proliferate a number of times equal to the difference. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)

Remove two +1/+1 counters from Experiment One: Regenerate Experiment One. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Search your library for up to two basic land cards and/or Gate cards, put them onto the battlefield tapped, then shuffle.

You take the initiative.

As an additional cost to cast this spell, you may tap any number of untapped creatures you control. This spell costs less to cast for each creature tapped this way.

Explosive Singularity deals 10 damage to any target.

Tap up to two target creatures.

Investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

Imprint — When Extraplanar Lens enters, you may exile target land you control.

Whenever a land with the same name as the exiled card is tapped for mana, its controller adds one mana of any type that land produced.

Whenever a creature dies, tap all untapped creatures that share a creature type with it or untap all tapped creatures that share a creature type with it.

, Sacrifice a creature: Put two +1/+1 counters on target creature.

, Remove a counter from a creature you control: Create a Treasure token.

, Sacrifice an artifact: Create a 2/1 white and black Inkling creature token with flying.

: Untap Fain, the Broker.

Whenever Falconer Adept attacks, create a 1/1 white Bird creature token with flying that's tapped and attacking.

Create three tapped Powerstone tokens. You gain 3 life. (The tokens are artifacts with ": Add . This mana can't be spent to cast a nonartifact spell.")

Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)

Whenever Fallen Shinobi deals combat damage to a player, that player exiles the top two cards of their library. Until end of turn, you may play those cards without paying their mana costs.

Whenever Fallowsage becomes tapped, you may draw a card.

2 — Whenever this creature attacks, untap target permanent.

4 — Whenever a creature enters the battlefield under your control, creatures you control get +1/+1 until end of turn.

2 — 2/3

3 — 5/3

, : Tap target creature.

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

Threshold — If seven or more cards are in your graveyard, instead search your library for up to three basic land cards, put them onto the battlefield tapped, then shuffle.

Farmstead Gleaner doesn't untap during your untap step.

, : Put a +1/+1 counter on Farmstead Gleaner. ( is the untap symbol.)

Whenever a source an opponent controls deals damage to you, if Farsight Mask is untapped, you may draw a card.

As an additional cost to cast this spell, tap two untapped creatures and/or lands you control.

Trample

When Fear of Missing Out enters, discard a card, then draw a card.

Delirium — Whenever Fear of Missing Out attacks for the first time each turn, if there are four or more card types among cards in your graveyard, untap target creature. After this phase, there is an additional combat phase.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Flying

Devour 2 (As this enters, you may sacrifice any number of creatures. This creature enters with twice that many +1/+1 counters on it.)

Tap up to two target creatures.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Tap all creatures blocking target attacking creature. Prevent all combat damage that would be dealt this turn by that creature and each creature blocking it.

Flying

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)

Whenever a nontoken creature you control dies, if it had counters on it, create X tapped 2/1 white and black Inkling creature tokens with flying, where X is the number of counters it had on it.

Pirates you control get +1/+0.

Whenever Fell Flagship deals combat damage to a player, that player discards a card.

Crew 3 (Tap any number of creatures you control with total power 3 or more: This Vehicle becomes an artifact creature until end of turn.)

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for .)

Fen Hauler can't be blocked by artifact creatures.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Create three 3/3 green Beast creature tokens.

Enchant land

Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color.

Fertilid enters with two +1/+1 counters on it.

, Remove a +1/+1 counter from Fertilid: Target player searches their library for a basic land card, puts it onto the battlefield tapped, then shuffles.

: Fervent Paincaster deals 1 damage to target player or planeswalker.

, Exert Fervent Paincaster: It deals 1 damage to target creature. (An exerted creature won't untap during your next untap step.)

(: Add or .)

Fetid Pools enters tapped.

Cycling (, Discard this card: Draw a card.)

Tap an untapped creature you control: Prevent the next 1 damage that would be dealt to target creature this turn.

You may pay and return a basic land you control to its owner's hand rather than pay this spell's mana cost.

Fieldmist Borderpost enters tapped.

: Add or .

Flip a coin until you lose a flip or choose to stop flipping. If you lose a flip, Fiery Gambit has no effect. If you win one or more flips, Fiery Gambit deals 3 damage to target creature. If you win two or more flips, Fiery Gambit deals 6 damage to each opponent. If you win three or more flips, draw nine cards and untap all lands you control.

Aftermath (Cast this spell only from your graveyard. Then exile it.)

Target creature you control fights target creature an opponent controls.

Draw X cards. If X is 10 or more, instead shuffle your graveyard into your library, draw X cards, untap up to five lands, and you have no maximum hand size for the rest of the game.

Exile Finale of Revelation.

Enthralling Performance — When Firbolg Flutist enters, gain control of target creature you don't control until end of turn. Untap it. It gains haste and myriad until end of turn. (Whenever it attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Fire Diamond enters tapped.

: Add .

Firemind Vessel enters tapped.

: Add two mana of different colors.