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.)

Vigilance; menace (This creature can't be blocked except by two or more creatures.)

Abomination of Llanowar's power and toughness are each equal to the number of Elves you control plus the number of Elf cards in your graveyard.

: Add .

, : Add one mana of any color.

, , Exile Abstergo Entertainment: Return up to one target historic card from your graveyard to your hand, then exile all graveyards. (Artifacts, legendaries, and Sagas are historic.)

: Add .

, : Put target artifact card from your graveyard on top of your library.

When Acererak the Archlich enters, if you haven't completed Tomb of Annihilation, return Acererak the Archlich to its owner's hand and venture into the dungeon.

Whenever Acererak the Archlich attacks, for each opponent, you create a 2/2 black Zombie creature token unless that player sacrifices a creature of their choice.

Freerunning (You may cast this spell for its freerunning cost if you dealt combat damage to a player this turn with an Assassin or commander.)

Menace (This creature can't be blocked except by two or more creatures.)

Other Assassins you control get +1/+1.

Commander creatures you own have "The first Dragon spell you cast each turn costs less to cast."

Adamaro, First to Desire's power and toughness are each equal to the number of cards in the hand of the opponent with the most cards in hand.

Vigilance

Adeline, Resplendent Cathar's power is equal to the number of creatures you control.

Whenever you attack, for each opponent, create a 1/1 white Human creature token that's tapped and attacking that player or a planeswalker they control.

When Adéwalé enters, reveal the top six cards of your library. Put an Assassin, Pirate, or Vehicle card from among them into your hand and the rest on the bottom of your library in a random order.

Whenever a Vehicle you control deals combat damage to a player, you may return Adéwalé from your graveyard to your hand.

When Admiral Brass, Unsinkable enters, mill four cards.

At the beginning of combat on your turn, you may return target Pirate creature card from your graveyard to the battlefield with a finality counter on it. It has base power and toughness 4/4. It gains haste until end of turn. (If a creature with a finality counter on it would die, exile it instead.)

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

Other creatures you control have melee. (If a creature has multiple instances of melee, each triggers separately.)

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

If one or more tokens would be created under your control, twice that many of those tokens are created instead.

Whenever a creature or planeswalker an opponent controls is dealt excess damage, if a Giant, Wizard, or spell you controlled dealt damage to it this turn, draw a card.

Flying

Aetherwing, Golden-Scale Flagship's power is equal to the number of artifacts you control.

Crew 1 (Tap any number of creatures you control with total power 1 or more: This Vehicle becomes an artifact creature until end of turn.)

Storm (When you cast this spell, copy it for each spell cast before it this turn. Copies become tokens.)

Aeve, Progenitor Ooze isn't legendary if it's a token.

Aeve enters with a +1/+1 counter on it for each other Ooze you control.

You may spend mana as though it were mana of any color to activate abilities of creatures you control.

Creatures you control with +1/+1 counters on them have all activated abilities of all creature cards exiled with Agatha's Soul Cauldron.

: Exile target card from a graveyard. When a creature card is exiled this way, put a +1/+1 counter on target creature you control.

Commander creatures you own have "Whenever an artifact or creature you control is put into a graveyard from the battlefield, each opponent loses 1 life."

Vigilance

Whenever Agrus Kos, Eternal Soldier becomes the target of an ability that targets only it, you may pay . If you do, copy that ability for each other creature you control that ability could target. Each copy targets a different one of those creatures. ( can be paid with either or .)

Whenever Agrus Kos, Wojek Veteran attacks, attacking red creatures get +2/+0 and attacking white creatures get +0/+2 until end of turn.

+1: Until end of turn, up to one target creature gets +1/+1 and gains first strike, vigilance, and lifelink.

−2: Put a +1/+1 counter on each creature you control and a loyalty counter on each other planeswalker you control.

−7: You get an emblem with "If a source would deal damage to you or a planeswalker you control, prevent all but 1 of that damage."

+1: Target permanent doesn't untap during its controller's next untap step.

−2: Ajani Vengeant deals 3 damage to any target and you gain 3 life.

−7: Destroy all lands target player controls.

+1: Put a +1/+1 counter on up to one target creature.

−3: Target creature gains flying and double strike until end of turn.

−8: Create X 2/2 white Cat creature tokens, where X is your life total.

+1: Distribute three +1/+1 counters among one, two, or three target creatures you control.

+1: Look at the top four cards of your library. You may reveal an Aura, creature, or planeswalker card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

−8: You gain 100 life.

When Ajani, Nacatl Pariah enters, create a 2/1 white Cat Warrior creature token.

Whenever one or more other Cats you control die, you may exile Ajani, then return him to the battlefield transformed under his owner's control.

+1: You gain life equal to the number of creatures you control plus the number of planeswalkers you control.

−2: Create a 2/2 white Cat Soldier creature token named Ajani's Pridemate with "Whenever you gain life, put a +1/+1 counter on Ajani's Pridemate."

0: If you have at least 15 life more than your starting life total, exile Ajani, Strength of the Pride and each artifact and creature your opponents control.

+2: Put two +1/+1 counters on up to one target creature.

+1: Reveal cards from the top of your library until you reveal a creature card. Put that card into your hand and the rest on the bottom of your library in a random order.

−11: Put X +1/+1 counters on target creature, where X is your life total. That creature gains trample until end of turn.

At the beginning of each player's end step, if an artifact entered the battlefield under your control this turn, look at the top two cards of your library. Put one of them into your hand and the other into your graveyard.

Flying

Whenever you create one or more tokens for the first time each turn, create a 1/1 white Bird creature token with flying.

: Creature tokens you control gain double strike until end of turn.

First strike, vigilance

Akiri, Line-Slinger gets +1/+0 for each artifact you control.

Partner (You can have two commanders if both have partner.)

This spell can't be countered.

Flying, trample, protection from white and from blue

: Akroma, Angel of Fury gets +1/+0 until end of turn.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

Flying, first strike, vigilance, trample

At the beginning of each combat, until end of turn, each other creature you control gets +1/+1 if it has flying, +1/+1 if it has first strike, and so on for double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, protection, reach, trample, vigilance, and partner.

Partner

Flying, trample

Sacrifice three other creatures: You may put a creature card from your hand onto the battlefield. Activate only as a sorcery and only once each turn.

Whenever you draw your second card each turn, create a 2/2 blue Drake creature token with flying.

Whenever you draw your fifth card each turn, Alandra, Sky Dreamer and Drakes you control each get +X/+X until end of turn, where X is the number of cards in your hand.

: Draw a card, then exile a card from your hand and put a number of time counters on it equal to its mana value. It gains "When the last time counter is removed from this card, if it's exiled, you may cast it without paying its mana cost. If you cast a creature spell this way, it gains haste until end of turn." Then remove a time counter from each other card you own in exile.

First strike

Whenever Alesha attacks, put a +1/+1 counter on it.

Raid — At the beginning of your end step, if you attacked this turn, return target creature card with mana value less than or equal to Alesha's power from your graveyard to the battlefield.

Whenever you cast a wordy spell, scry 2. (A spell is wordy if it has four or more lines of rules text.)

, : Choose target creature you don't control. Reveal the top card of your library. Alexander Clamilton gets +X/+0 until end of turn, where X is the number of lines of rules text of the revealed card. Alexander Clamilton fights that creature.

Trample

Alexios, Deimos of Kosmos attacks each combat if able, can't be sacrificed, and can't attack its owner.

At the beginning of each player's upkeep, that player gains control of Alexios, untaps it, and puts a +1/+1 counter on it. It gains haste until end of turn.

If you would gain life, you gain twice that much life instead.

If you would draw a card except the first one you draw in each of your draw steps, draw two cards instead.

Other artifact creatures you control have haste.

Whenever one or more artifact creatures you control attack, Alibou, Ancient Witness deals X damage to any target and you scry X, where X is the number of tapped artifacts you control.

Whenever you cast a historic spell, create a 1/1 white Soldier creature token. (Artifacts, legendaries, and Sagas are historic.)

Whenever Alistair attacks, you may pay . If you do, creatures you control get +X/+X until end of turn, where X is the number of historic permanents you control.

Vigilance

When Alquist Proft, Master Sleuth enters, investigate. (Create a Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.")

, , Sacrifice a Clue: You draw X cards and gain X life.

First strike

Whenever Altaïr Ibn-La'Ahad attacks, exile up to one target Assassin creature card from your graveyard with a memory counter on it. Then for each creature card you own in exile with a memory counter on it, create a tapped and attacking token that's a copy of it. Exile those tokens at end of combat.

Ward—Pay 3 life.

Whenever you gain life, Amalia Benavides Aguirre explores. Then destroy all other creatures if its power is exactly 20. (To have this creature explore, reveal the top card of your library. Put that card into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then put the card back or put it into your graveyard.)

When Ambassador Blorpityblorpboop enters, you get , then you may put a sticker on a nonland permanent you own.

At the beginning of each combat, you may have Ambassador Blorpityblorpboop's base power become equal to the total power of all stickers on permanents you control and its base toughness become equal to those stickers' total toughness.

Haste

Whenever Amber Gristle O'Maul attacks, you may discard your hand. If you do, draw a card for each player being attacked.

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

At the beginning of your upkeep, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Each enchantment card in your hand has miracle. Its miracle cost is equal to its mana cost reduced by . (You may cast a card for its miracle cost when you draw it if it's the first card you drew this turn.)

Flying, menace

Other Insects you control have menace.

Whenever one or more cards leave your graveyard, you may create a 1/1 black and green Insect creature token, then put a number of +1/+1 counters on it equal to the greatest mana value among those cards. Do this only once each turn.

Whenever Anafenza, the Foremost attacks, put a +1/+1 counter on another target tapped creature you control.

If a nontoken creature an opponent owns would die or a creature card not on the battlefield would be put into an opponent's graveyard, exile that card instead.

First strike, vigilance

Heroic — Whenever you cast a spell that targets Anax and Cymede, creatures you control get +1/+1 and gain trample until end of turn.