When A Killer Among Us enters, create a 1/1 white Human creature token, a 1/1 blue Merfolk creature token, and a 1/1 red Goblin creature token. Then secretly choose Human, Merfolk, or Goblin.

Sacrifice A Killer Among Us, Reveal the creature type you chose: If target attacking creature token is the chosen type, put three +1/+1 counters on it and it gains deathtouch until end of turn.

When Abdel Adrian, Gorion's Ward enters, exile any number of other nonland permanents you control until Abdel Adrian leaves the battlefield. Create a 1/1 white Soldier creature token for each permanent exiled this way.

Choose a Background (You can have a Background as a second commander.)

At the beginning of your end step, choose one —

• You gain 1 life.

• Return target creature card with mana value 1 from your graveyard to the battlefield.

Choose one —

• Abrade deals 3 damage to target creature.

• Destroy target artifact.

Choose one —

• You gain 5 life.

• Prevent the next 5 damage that would be dealt to target creature this turn.

Entwine (Choose both if you pay the entwine cost.)

Choose land or nonland. Reveal cards from the top of your library until you reveal a card of the chosen kind. Put that card into your hand and the rest on the bottom of your library in a random order.

Choose one —

• Exile target creature with power 3 or greater.

• You draw two cards and you lose 2 life.

• Distribute two +1/+1 counters among one or two target creatures.

Choose one —

• Choose a nonland card name. Opponents can't cast spells with the chosen name until your next turn.

• Choose target nonland permanent. Until your next turn, it can't attack or block, and its activated abilities can't be activated.

Choose one —

• Destroy target blue permanent.

• Return target Island to its owner's hand.

Vigilance

When Adaptive Sporesinger enters, choose one —

• Target creature gets +2/+2 and gains vigilance until end of turn.

• Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

, : Copy target activated or triggered ability you control. You may choose new targets for the copy.

Ultimate Sacrifice — , Sacrifice Adric: Counter target activated or triggered ability.

Doctor's companion (You can have two commanders if the other is the Doctor.)

Choose an artist. Exile the top six cards of your library, then reveal cards from the top of your library until you reveal a card with art by the chosen artist. Put that card in your hand and exile all other cards revealed this way.

Choose target spell or permanent that's red or green. Its owner puts it on their choice of the top or bottom of their library.

Choose target spell. You get (two energy counters), then you may pay any amount of . Counter that spell unless its controller pays for each paid this way.

Put target attacking or blocking creature on top of its owner's library.

Conspire (As you cast this spell, you may tap two untapped creatures you control that share a color with it. When you do, copy it and you may choose a new target for the copy.)

Choose one —

• Agate Assault deals 4 damage to target creature. If that creature would die this turn, exile it instead.

• Exile target artifact.

, : Choose target opponent. Conjure a duplicate of the top card of their library into your hand. It perpetually gains "You may spend mana as though it were mana of any color to cast this spell." Then they exile the top card of their library face down.

Target opponent reveals their hand. You choose a nonland card from it or a card from their graveyard. Exile that card. You lose 1 life.

Choose one or both —

• Return target creature card from your graveyard to your hand.

• Return target planeswalker card from your graveyard to your hand.

When Ainok Guide enters, choose one —

• Put a +1/+1 counter on Ainok Guide.

• Search your library for a basic land card, reveal it, then shuffle and put that card on top.

Choose a color. Creatures you control gain protection from the chosen color until end of turn.

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

Choose one —

• Target player gains X life.

• Prevent the next X damage that would be dealt to any target this turn.

Planet (When this permanent enters, exile the top five cards of your library as its resources.)

Trade Routes — At the beginning of your precombat main phase, choose one —

• Discard a card. If you do, put two of Alberix's resources into its owner's hand.

• Exile the top card of your library as a resource.

Flying

As Alhammarret, High Arbiter enters, each opponent reveals their hand. You choose the name of a nonland card revealed this way.

Your opponents can't cast spells with the chosen name (as long as this creature is on the battlefield).

As Alloy Golem enters, choose a color.

Alloy Golem is the chosen color. <I>(It's still an artifact.)</I>

When Alpha Guard enters, choose a letter.

: Untap another target permanent whose name starts with the chosen letter.

Alrund gets +1/+1 for each card in your hand and each foretold card you own in exile.

At the beginning of your end step, choose a card type, then reveal the top two cards of your library. Put all cards of the chosen type revealed this way into your hand and the rest on the bottom of your library in any order.

You may choose not to untap Amber Prison during your untap step.

, : Tap target artifact, creature, or land. That permanent doesn't untap during its controller's untap step for as long as Amber Prison remains tapped.

+1: Draw a card, then put a card from your hand on top of your library.

−1: Exile another target permanent you own, then return it to the battlefield under your control.

−6: Choose left or right. Each player gains control of all nonland permanents other than Aminatou, the Fateshifter controlled by the next player in the chosen direction.

Aminatou, the Fateshifter can be your commander.

Partner with Rory Williams (When this creature enters, target player may put Rory into their hand from their library, then shuffle.)

Whenever Amy Pond deals combat damage to a player, choose a suspended card you own and remove that many time counters from it.

Doctor's companion (You can have two commanders if the other is the Doctor.)

Whenever another nontoken creature you control enters, bolster 1. (Choose a creature with the least toughness among creatures you control and put a +1/+1 counter on it.)

Flash; 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

When Angel of Salvation enters, prevent the next 5 damage that would be dealt this turn to any number of targets, divided as you choose.

Flying

At the beginning of each combat, choose first strike, vigilance, or lifelink. Creatures you control gain that ability until end of turn.

Deathtouch

The first instant or sorcery spell you cast each turn has casualty 2. (As you cast that spell, you may sacrifice a creature with power 2 or greater. When you do, copy the spell and you may choose new targets for the copy.)

You get seven . Choose an inanimate object you own from outside the game. Put a power and toughness sticker on it. You may also put a name sticker, an art sticker, and/or an ability sticker on it. Put it onto the battlefield as a creature token.

Vigilance

As Anointed Peacekeeper enters, look at an opponent's hand, then choose any card name.

Spells your opponents cast with the chosen name cost more to cast.

Activated abilities of sources with the chosen name cost more to activate unless they're mana abilities.

Flying, vigilance

When Ao, the Dawn Sky dies, choose one —

• Look at the top seven cards of your library. Put any number of nonland permanent cards with total mana value 4 or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

• Put two +1/+1 counters on each permanent you control that's a creature or Vehicle.

Vigilance (Attacking doesn't cause this creature to tap.)

When this creature enters, choose one —

• Put two +1/+1 counters on target creature you control.

• You gain 4 life.

Choose one or both —

• Target creature gets +1/+1 until end of turn.

• Return target creature to its owner's hand.

Arc Lightning deals 3 damage divided as you choose among one, two, or three targets.

As Arcane Adaptation enters, choose a creature type.

Creatures you control are the chosen type in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield.

Choose target creature. Whenever that creature is dealt damage this turn, it deals that much damage to each other creature and each player.

Choose one —

• Search your library for a creature or land card and reveal it. Put it onto the battlefield tapped if it's a land card. Otherwise, put it into your hand. Then shuffle.

• Put a +1/+1 counter on target creature you control. It deals damage equal to its power to target creature you don't control.

• Exile target artifact or enchantment.

Choose one —

• Counter target spell.

• Target player draws two cards.

• Gain control of target nonland permanent with mana value 1 or less.

, : Choose target non-Wall creature the active player has controlled continuously since the beginning of the turn. That player may pay , where X is that mana value. If they don't pay, the creature attacks this turn if able, and at the beginning of the next end step, destroy it if it didn't attack this turn. Activate only before attackers are declared.

If four or more creatures are attacking, you may pay rather than pay this spell's mana cost.

Arrow Volley Trap deals 5 damage divided as you choose among any number of target attacking 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.)

Choose one or both —

• Counter target spell.

• Draw two cards, then discard a card.

As Ashes of the Fallen enters, choose a creature type.

Each creature card in your graveyard has the chosen creature type in addition to its other types.

As Ashling's Prerogative enters, choose odd or even. (Zero is even.)

Each creature with mana value of the chosen quality has haste.

Each creature without mana value of the chosen quality enters tapped.

You may choose not to untap Ashnod's Battle Gear during your untap step.

, : Target creature you control gets +2/-2 for as long as Ashnod's Battle Gear remains tapped.