First strike

When Cemetery Gatekeeper enters, exile a card from a graveyard.

Whenever a player plays a land or casts a spell, if it shares a card type with the exiled card, Cemetery Gatekeeper deals 2 damage to that player.

Flash

When Cemetery Protector enters, exile a card from a graveyard.

Whenever you play a land or cast a spell, if it shares a card type with the exiled card, create a 1/1 white Human creature token.

: Add . Cephalid Coliseum deals 1 damage to you.

Threshold — , , Sacrifice Cephalid Coliseum: Target player draws three cards, then discards three cards. Activate only if seven or more cards are in your graveyard.

Target player sacrifices a creature.

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

Changeling (This card is every creature type.)

Protection from black

: Chameleon Colossus gets +X/+X until end of turn, where X is its power.

Flying, double team

When Champions of Tyr enters the battlefield, you get a boon with "When you cast your next creature spell, that creature enters the battlefield with your choice of a +1/+1 counter, a flying counter, or a lifelink counter on it."

+1: Discard a card. If a red card is discarded this way, Chandra Ablaze deals 4 damage to any target.

−2: Each player discards their hand, then draws three cards.

−7: Cast any number of red instant and/or sorcery cards from your graveyard without paying their mana costs.

This spell can't be countered.

+2: Each opponent gets an emblem with "At the beginning of your upkeep, this emblem deals 1 damage to you."

−3: Chandra, Awakened Inferno deals 3 damage to each non-Elemental creature.

−X: Chandra, Awakened Inferno deals X damage to target creature or planeswalker. If a permanent dealt damage this way would die this turn, exile it instead.

+1: Add . Chandra, Dressed to Kill deals 1 damage to up to one target player or planeswalker.

+1: Exile the top card of your library. If it's red, you may cast it this turn.

−7: Exile the top five cards of your library. You may cast red spells from among them this turn. You get an emblem with "Whenever you cast a red spell, this emblem deals X damage to any target, where X is the amount of mana spent to cast that spell."

+1: Create two 3/1 red Elemental creature tokens with haste. Exile them at the beginning of the next end step.

0: Discard all the cards in your hand, then draw that many cards plus one.

−X: Chandra, Flamecaller deals X damage to each creature.

+1: Chandra, Flame's Fury deals 2 damage to any target.

−2: Chandra, Flame's Fury deals 4 damage to target creature and 2 damage to that creature's controller.

−8: Chandra, Flame's Fury deals 10 damage to target player and each creature that player controls.

Whenever you cast an instant or sorcery spell, copy it. You may choose new targets for the copy. This ability triggers only once each turn.

+2: Add two mana in any combination of colors.

+1: Exile the top five cards of your library. Until the end of your next turn, you may cast an instant or sorcery spell from among those exiled cards.

−X: Chandra, Hope's Beacon deals X damage to each of up to two targets.

+1: Chandra, Pyromaster deals 1 damage to target player or planeswalker and 1 damage to up to one target creature that player or that planeswalker's controller controls. That creature can't block this turn.

0: Exile the top card of your library. You may play it this turn.

−7: Exile the top ten cards of your library. Choose an instant or sorcery card exiled this way and copy it three times. You may cast the copies without paying their mana costs.

+1: Chandra, the Firebrand deals 1 damage to any target.

−2: When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy.

−6: Chandra, the Firebrand deals 6 damage to each of up to six targets.

Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add .

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

At the beginning of your upkeep, exile the top card of your library. You may play it this turn.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

Deathtouch

At the beginning of your upkeep, if your opponents control no permanents with bounty counters on them, put a bounty counter on target creature or planeswalker an opponent controls.

Whenever a permanent an opponent controls with a bounty counter on it dies, you gain 3 life and draw a card.

Spells you control can't be countered.

At the beginning of your end step, discover 5. (Exile cards from the top of your library until you exile a nonland card with mana value 5 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

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

Flying, haste

Whenever Chiss-Goria, Forge Tyrant attacks, exile the top five cards of your library. You may cast an artifact spell from among them this turn. If you do, it has affinity for artifacts.

You may spend mana as though it were mana of any color.

: Add .

, : Draw a card for each color among permanents you control.

Flash

This spell can't be countered.

Flying

Discard a card: Until end of turn, Chromium, the Mutable becomes a Human with base power and toughness 1/1, loses all abilities, and gains hexproof. It can't be blocked this turn.

(: Add or .)

Cinder Glade enters tapped unless you control two or more basic lands.

Trample

When you cast this spell and whenever Cityscape Leveler attacks, destroy up to one target nonland permanent. Its controller creates a tapped Powerstone token.

Unearth

Whenever you attack, target attacking Vampire that isn't a Demon becomes a Demon in addition to its other types. It gains "When this creature dies, draw a card and create a tapped 4/3 white and black Vampire Demon creature token with flying."

Allies — At the beginning of your end step, put a +1/+1 counter on each of up to two other target legendary creatures.

Betrayal — Whenever a legendary creature with counters on it dies, draw a card for each counter on it. You lose 2 life.

For each creature target player controls, create a token that's a copy of that creature.

Will of the council — At the beginning of your upkeep, starting with you, each player votes for carnage or homage. If carnage gets more votes, sacrifice Coercive Portal and destroy all nonland permanents. If homage gets more votes or the vote is tied, draw a card.

Hideaway 5 (When this artifact enters, look at the top five cards of your library, exile one face down, then put the rest on the bottom in a random order.)

, : Put a +1/+1 counter on target creature you control. Then if you control three or more creatures with different powers, you may play the exiled card without paying its mana cost.

First strike

When Combustible Gearhulk enters, target opponent may have you draw three cards. If the player doesn't, you mill three cards, then Combustible Gearhulk deals damage to that player equal to the total mana value of those cards.

0: Roll a six-sided die.

1 or 2 — +2, then create two 1/1 green Squirrel creature tokens. They gain haste until end of turn.

3 — −1, then return a card with mana value 2 or less from your graveyard to your hand.

4 or 5 — Comet, Stellar Pup deals damage equal to the number of loyalty counters on him to a creature or player, then −2.

6 — +1, and you may activate Comet, Stellar Pup's loyalty ability two more times this turn.

At the beginning of your end step, put a loyalty counter on another target planeswalker you control.

+1: Create a 1/1 red Wizard creature token with ": Add . Spend this mana only to cast a planeswalker spell."

−3: You draw X cards and Commodore Guff deals X damage to each opponent, where X is the number of planeswalkers you control.

Commodore Guff can be your commander.

Search your library for a white card, a blue card, a black card, a red card, and a green card. Reveal those cards, put them into your hand, then shuffle.

Flying

You may collect evidence 10 rather than pay the mana cost for spells you cast. (To collect evidence 10, exile cards with total mana value 10 or greater from your graveyard.)

Flying, menace

At the beginning of your end step, a random nonland card in your hand perpetually gains "When you cast this spell, you lose 3 life."

Copperline Gorge enters tapped unless you control two or fewer other lands.

: Add or .

As Council of the Absolute enters, choose a noncreature, nonland card name.

Your opponents can't cast spells with the chosen name.

Spells with the chosen name you cast cost less to cast.

Suspend 4— (Rather than cast this card from your hand, pay and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

Create two 4/4 green Rhino creature tokens with trample.

Whenever Creeping Inn attacks, you may exile a creature card from your graveyard. If you do, each opponent loses X life and you gain X life, where X is the number of creature cards exiled with Creeping Inn.

: Creeping Inn phases out.

Other Horses you control have indestructible.

At the beginning of each end step, if you gained life this turn, create a 5/5 white Horse creature token.

Other white creatures get +1/+1.

Nonwhite creatures get -1/-1.

Pay 2 life: Return Crovax, Ascendant Hero to its owner's hand.

Enchant player

At the beginning of enchanted player's upkeep, that player sacrifices a creature or planeswalker. If the player can't, they lose 5 life.

Surge (You may cast this spell for its surge cost if you or a teammate has cast another spell this turn.)

Return all nonland permanents to their owners' hands. If this spell's surge cost was paid, create an 8/8 blue Octopus creature token.

Extort (Whenever you cast a spell, you may pay . If you do, each opponent loses 1 life and you gain that much life.)

Whenever you tap a Swamp for mana, add an additional .

, : Choose a card name, then reveal a card at random from your hand. If that card has the chosen name, Cursed Scroll deals 2 damage to any target.

Living metal (During your turn, this Vehicle is also a creature.)

Flying

Whenever Cyclonus deals combat damage to a player, convert it. If you do, there is an additional beginning phase after this phase. (The beginning phase includes the untap, upkeep, and draw steps.)

+1: Target player draws two cards, then discards two cards.

−2: Gain control of target artifact.

−6: You get an emblem with "Whenever you cast a spell that targets one or more permanents, gain control of those permanents."

Deathtouch

Skip your draw step.

At the beginning of your upkeep, if you have fewer than seven cards in hand, draw cards equal to the difference.

Destroy all creatures. They can't be regenerated.

+2: Discard up to two cards, then draw that many cards.

−2: Sacrifice an artifact. If you do, return target artifact card from your graveyard to the battlefield.

−10: You get an emblem with "Whenever an artifact is put into your graveyard from the battlefield, return that card to the battlefield at the beginning of the next end step."

Daretti, Scrap Savant can be your commander.