You may have Sakashima enter as a copy of another creature you control, except it has Sakashima's other abilities. The "legend rule" doesn't apply to permanents you control. Partner (You can have two commanders if both have partner.)

{T}: Add {C}. {1}{U}, {T}: Put target artifact card from your graveyard on top of your library.

{T}: Add {C}. {3}, {T}: Draw a card. Activate only if you control a creature with power 4 or greater.

{T}: Add {C}. {2}, {T}, Sacrifice this land: Return target artifact card from your graveyard to your hand.

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

This land enters tapped unless you control two or more other lands. {T}: Add {W} or {U}.

{T}: Add {W}. {W}, {T}: Prevent the next 2 damage that would be dealt to target legendary creature this turn.

{T}: Add {W}. Channel — {2}{W}, Discard this card: It deals 4 damage to target attacking or blocking creature. This ability costs {1} less to activate for each legendary creature you control.

{T}: Add {W}. When Flagstones of Trokair is put into a graveyard from the battlefield, you may search your library for a Plains card, put it onto the battlefield tapped, then shuffle.

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

({T}: Add {W} or {U}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

At the beginning of your upkeep, if you control three or more artifacts, you gain 1 life. {T}: Add {C}. {4}, {T}, Sacrifice Inventors' Fair: Search your library for an artifact card, reveal it, put it into your hand, then shuffle. Activate only if you control three or more artifacts.

({T}: Add {U}.)

({T}: Add {W} or {U}.) This land enters tapped. When this land enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

{T}: Add {U}. {U}, {T}: Untap target legendary permanent.

Minas Tirith enters tapped unless you control a legendary creature. {T}: Add {W}. {1}{W}, {T}: Draw a card. Activate only if you attacked with two or more creatures this turn.

({T}: Add {U}.) This land enters tapped unless you control three or more other Islands. When this land enters untapped, you may put target instant or sorcery card from your graveyard on top of your library.

{T}: Add {U}. {1}: Return Oboro to its owner's hand.

{T}: Add {U}. Channel — {3}{U}, Discard this card: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.

({T}: Add {W}.)

{T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a legendary spell. {T}: Add one mana of any color among legendary permanents you control. {3}, {T}, Exile this land: Target legendary creature gains hexproof and indestructible until end of turn.

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}.

({T}: Add {W} or {U}.) This land enters tapped unless you control two or more basic lands.

Rivendell enters tapped unless you control a legendary creature. {T}: Add {U}. {1}{U}, {T}: Scry 2. Activate only if you control a legendary creature.

{T}: Add {C}. {4}, {T}: Target creature can't be blocked this turn.

This land enters tapped unless you have two or more opponents. {T}: Add {W} or {U}.

{1}, {T}: Add {W}{U}.

As Three Tree City enters, choose a creature type. {T}: Add {C}. {2}, {T}: Choose a color. Add an amount of mana of that color equal to the number of creatures you control of the chosen type.

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

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

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.

Equipped creature gets +1/+1 for each creature you control. When a legendary creature you control enters, if there is no monarch, you become the monarch. Equip {4}. This ability costs {3} less to activate if you're the monarch.

{T}: Add one mana of any color that a land an opponent controls could produce.

Each legendary creature you control gets +1/+1 for each other legendary creature you control. {X}, {T}: Look at the top X cards of your library. You may reveal a legendary creature card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

You may have this artifact enter as a copy of any creature on the battlefield, except it's an artifact and it has "{T}: Add {U}." (It's not a creature.) {T}: Add {U}.

This artifact enters tapped. {T}: Add {W}.

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

The "legend rule" doesn't apply to permanents you control. Each legendary creature you control gets +1/+1. Each nontoken creature you control gets +1/+1 for each other creature you control with the same name as that creature.

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

This artifact enters tapped. {T}: Add {U}.

{T}: Add {C}{C}.

Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and {T} no matter when it came under your control.) Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Equipped creature gets +1/+1. Whenever equipped creature attacks, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle. Equip {2}

Equipped creature has vigilance. Whenever another artifact or creature is put into a graveyard from the battlefield, put a +1/+1 counter on equipped creature. Equip {2}

+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.

Outlast {W} ({W}, {T}: Put a +1/+1 counter on this creature. Outlast only as a sorcery.) Each creature you control with a +1/+1 counter on it has lifelink.

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.)

Flying, vigilance When Ao 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.

You may have this creature enter as a copy of any nonland permanent on the battlefield.

You may have this creature enter as a copy of any creature on the battlefield, except it has "Whenever this creature attacks, it connives." (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) Creatures you control have "Whenever one or more counters are put on this creature for the first time each turn, draw a card."

When this creature enters, double the number of each kind of counter on any number of target permanents.

Flying, lifelink Each legendary permanent you control has ward {2}. (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)

Creatures you control with +1/+1 counters on them can't be blocked.

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.)

You may have this creature enter as a copy of a creature you control.

Flying You may have this creature enter as a copy of any creature on the battlefield with mana value less than or equal to the amount of mana spent to cast this creature, except it's a Bird in addition to its other types and it has flying.

Other Dogs you control get +1/+1. Whenever this creature attacks, prevent all combat damage that would be dealt this turn to Dogs you control.

You may have this creature enter as a copy of any creature on the battlefield, except it's an Illusion in addition to its other types and it has "When this creature becomes the target of a spell or ability, sacrifice it."

Flash Whenever Phelia attacks, exile up to one other target nonland permanent. At the beginning of the next end step, return that card to the battlefield under its owner's control. If it entered under your control, put a +1/+1 counter on Phelia.

({U/P} can be paid with either {U} or 2 life.) You may have this creature enter as a copy of any artifact or creature on the battlefield, except it's an artifact in addition to its other types.

Flash You may have this creature enter as a copy of any creature on the battlefield.

When this creature enters, you may search your library for an artifact card with mana value 3, reveal it, put it into your hand, then shuffle.

Choose a creature type. Draw a card for each permanent you control of that type.

Search your library for an artifact card, reveal it, put it into your hand, then shuffle.

Choose a creature type. Return all creatures that aren't of the chosen type to their owners' hands.

Kicker {5} (You may pay an additional {5} as you cast this spell.) Create a token that's a copy of target creature. If this spell was kicked, create five of those tokens instead.

(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.) Exile all nonland permanents that aren't legendary.

Legendary creatures you control get +2/+1 and have ward {1}. Nonlegendary creatures you control get +1/+1.

Commander creatures you own have "Whenever you cast a spell that shares a creature type with this creature, draw a card. This ability triggers only once each turn."

As this enchantment enters, choose a creature type. Whenever a creature you control of the chosen type enters or attacks, draw a card.

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep. You draw a card at the beginning of the next turn's upkeep.

Counter target spell.

Each player returns a creature they control to its owner's hand.

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

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

Exile target creature. Its controller manifests the top card of their library. (That player puts the top card of their library onto the battlefield face down as a 2/2 creature. If it's a creature card, it can be turned face up any time for its mana cost.)

Exile target artifact or enchantment. If you cast this spell during your main phase, you may exile up to one other target artifact or enchantment.

Choose two target creatures controlled by different players. Return those creatures to their owners' hands.

Destroy target nonland permanent. Its controller creates a 1/1 white Human creature token.

Exile target creature. Its controller gains life equal to its power.