Return all creature and planeswalker cards with mana value X or less from your graveyard to the battlefield. Exile Ascend from Avernus.

If an artifact or creature entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

{T}: Add one mana of any color in your commander's color identity.

This land enters tapped unless you control a Plains or an Island. {T}: Add {W} or {U}.

({T}: Add {U}.)

{T}: Add {C}. {1}, {T}: Move a counter from target permanent you control onto another target permanent. Activate only as a sorcery.

({T}: Add {W}.)

As this land enters, you may reveal a Plains or Island card from your hand. If you don't, this land enters tapped. {T}: Add {W} or {U}.

When this artifact enters, put a rope counter on target creature you control. At the beginning of each player's upkeep, that player may pay {2}. If they do, they put a rope counter on a creature they control. Otherwise, exile this artifact and each creature without a rope counter on it, then remove all rope counters from all creatures.

Destroy target permanent. Its controller creates a 3/3 green Elephant creature token.

Training (Whenever this creature attacks with another creature with greater power, put a +1/+1 counter on this creature.) {2}{W}, Remove two +1/+1 counters from among creatures you control: Destroy target artifact or enchantment.

Counter target spell. If that spell's mana value was 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Return target nonland permanent to its owner's hand. If that permanent had mana value 3 or less, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flying Whenever this creature attacks, choose a counter on a permanent you control. Put a counter of that kind on target permanent you control if it doesn't have a counter of that kind on it.

+1: Put a +1/+1 counter on up to one target creature. It gains indestructible until end of turn. −2: Whenever one or more nontoken creatures attack this turn, create that many 1/1 white Soldier creature tokens that are tapped and attacking. −6: You get an emblem with "At the beginning of combat on your turn, create a 1/1 white Soldier creature token, then put a +1/+1 counter on each creature you control."

Put a +1/+1 counter on each creature you control.

At the beginning of combat on your turn, choose a kind of counter at random that this creature doesn't have on it from among flying, first strike, deathtouch, hexproof, lifelink, menace, reach, trample, vigilance, and +1/+1. Put a counter of that kind on this creature.

+1: Choose up to one target creature. Put a +1/+1 counter and a counter from among flying, first strike, lifelink, or vigilance on it. −3: Look at the top seven cards of your library. You may put a permanent card with mana value 3 or less from among them onto the battlefield with a shield counter on it. Put the rest on the bottom of your library in a random order. −7: Create five 3/3 white Angel creature tokens with flying.

Backup 1 (When this creature enters, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.) When this creature dies, put its counters on target creature you control.

This creature enters with a +1/+1 counter on it. When this creature dies, if it had counters on it, put those counters on target creature you control.

When this creature enters, put a vigilance counter on target non-Human creature you control. {1}{W}, {T}: Put a +1/+1 counter on each creature you control with vigilance.

If you would put one or more counters on a creature or planeswalker you control or on yourself, put that many plus one of each of those kinds of counters on that permanent or player instead. Choose a Background (You can have a Background as a second commander.)

At the beginning of combat on your turn, put a +1/+1 counter on target creature you control.

Mikaeus enters with X +1/+1 counters on it. {T}: Put a +1/+1 counter on Mikaeus. {T}, Remove a +1/+1 counter from Mikaeus: Put a +1/+1 counter on each other creature you control.

Survival — At the beginning of your second main phase, if this creature is tapped, put a flying, lifelink, or +1/+1 counter on it. Whenever this creature or another creature you control dies, if it had counters on it, put those counters on up to one target creature.

Whenever a permanent you control leaves the battlefield, if it had counters on it, put those counters on target permanent you control. {4}{W}: Move any number of counters from target permanent you control to another target permanent you control.

When Urdnan enters, put a +1/+1 counter on target creature. Whenever you attack, target attacking creature with a +1/+1 counter on it gains first strike until end of turn. If that creature has two or more +1/+1 counters on it, it gains double strike until end of turn instead.

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

Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Whenever you cast a noncreature spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flying Whenever this creature deals combat damage to a player or planeswalker, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Whenever you cast a spell, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Whenever another nontoken creature you control enters, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

When this creature enters, choose one — • Put a shield counter on target permanent. (If it would be dealt damage or destroyed, remove a shield counter from it instead.) • Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flying Whenever this creature deals combat damage to a player, for each kind of counter on target permanent or player, give that permanent or player another counter of that kind.

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

Flying Whenever this creature deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Flying Cycling {2}{U} ({2}{U}, Discard this card: Draw a card.) When you cycle this card, put a flying counter on target creature you control.

Put a shield counter on target creature. (If it would be dealt damage or destroyed, remove a shield counter from it instead.) Scry 1.

When this creature dies, put a shield counter on target creature you control. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)

Whenever this creature attacks while saddled, put a +1/+1 counter on target creature. Sacrifice this creature: Creatures you control with counters on them gain hexproof and indestructible until end of turn. Saddle 1 (Tap any number of other creatures you control with total power 1 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)

Addendum — If you cast this spell during your main phase, put a shield counter on a creature you control. (If it would be dealt damage or destroyed, remove a shield counter from it instead.) Choose a kind of counter on a creature you control. Put a counter of that kind on each other creature you control.

As this enchantment enters, choose a creature type. {1}{W}: Put a divinity counter on target creature you control of the chosen type. Each creature you control with a divinity counter on it has indestructible.

Commander creatures you own have "When this creature enters and at the beginning of your upkeep, each player may put two +1/+1 counters on a creature they control. For each opponent who does, you gain protection from that player until your next turn." (You can't be targeted, dealt damage, or enchanted by anything controlled by that player.)

When this enchantment enters, support 2. (Put a +1/+1 counter on each of up to two target creatures.) {1}: Choose target creature with a counter on it. When that creature dies this turn, return that card to its owner's hand.

Flying Whenever another permanent you control leaves the battlefield, if it had counters on it, investigate. (Create a Clue artifact token with "{2}, Sacrifice this token: Draw a card.")

Whenever a creature you control deals combat damage to a player, you may draw a card. {1}{U}, {T}: Creatures your opponents control attack this turn if able.

Skulk (This creature can't be blocked by creatures with greater power.) This creature enters with X +1/+1 counters on it. At the beginning of your upkeep, if this creature has one or more +1/+1 counters on it, you may remove a +1/+1 counter from it. If you do, draw a card.

This creature enters with X +1/+1 counters on it. {4}: Put a +1/+1 counter on this creature. When this creature dies, draw a card for each +1/+1 counter on it.

Flying Whenever you attack with one or more creatures with counters on them, draw a card.

Flying This creature enters with two shield counters on it. Whenever this creature enters or attacks, you may remove a counter from a creature or planeswalker you control. If you do, draw a card and create a 1/1 green and white Citizen creature token.

({U/P} can be paid with either {U} or 2 life.) Draw two cards, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

{T}: Add one mana of any color. {4}, {T}: Choose one. Activate only as a sorcery. • Double the number of each kind of counter on target permanent. • Double the number of each kind of counter you have.

{T}: Add one mana of any color in your commander's color identity.

This artifact enters with X charge counters on it. {T}: Choose a color. Add one mana of that color for each charge counter on this artifact.

Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.) This artifact enters with a charge counter on it for each time it was kicked. {T}: Add {C} for each charge counter on this artifact.

{T}: Add one mana of any color. At the beginning of your upkeep, put a night counter on this artifact. Then if it has eight or more night counters on it, remove all of them and create eight colorless snow artifact tokens named Replicated Ring with "{T}: Add one mana of any color."