Keyword: Partner

Whenever you cast your first spell each turn, choose an opponent at random. Vial Smasher the Fierce deals damage equal to that spell’s mana value to that player or a planeswalker that player controls.
Partner (You can have two commanders if both have partner.)

Flying
Whenever an opponent casts a spell, put a +1/+1 counter on Ishai, Ojutai Dragonspeaker.
Partner (You can have two commanders if both have partner.)

Reach
Whenever another permanent you control enters, if it wasn’t put onto the battlefield with this ability, you may put a permanent card with equal or lesser mana value from your hand onto the battlefield.
Partner (You can have two commanders if both have partner.)

Partner with Jacob Frye (When this creature enters, target player may put Jacob into their hand from their library, then shuffle.)
, : Draw a card, then discard a card. When you discard a creature card this way, target creature you control can’t be blocked this turn.

Partner with Evie Frye (When this creature enters, target player may put Evie into their hand from their library, then shuffle.)
Whenever one or more Assassins you control deal combat damage to a player, exile up to one target Assassin card or card with freerunning from your graveyard. If you do, copy it. You may cast the copy.

Partner with Evie Frye (When this creature enters, target player may put Evie into their hand from their library, then shuffle.)
Whenever one or more Assassins you control deal combat damage to a player, exile up to one target Assassin card or card with freerunning from your graveyard. If you do, copy it. You may cast the copy.

Partner with Evie Frye (When this creature enters, target player may put Evie into their hand from their library, then shuffle.)
Whenever one or more Assassins you control deal combat damage to a player, exile up to one target Assassin card or card with freerunning from your graveyard. If you do, copy it. You may cast the copy.

Partner with Jacob Frye (When this creature enters, target player may put Jacob into their hand from their library, then shuffle.)
, : Draw a card, then discard a card. When you discard a creature card this way, target creature you control can’t be blocked this turn.

Partner with Jacob Frye (When this creature enters, target player may put Jacob into their hand from their library, then shuffle.)
, : Draw a card, then discard a card. When you discard a creature card this way, target creature you control can’t be blocked this turn.

Partner with Knight (You may select any legendary Knight to be this creature’s partner. It doesn’t have to have Partner. You don’t search for a Knight when this enters the battlefield.)
Knights you control have haste and “At the beginning of your end step, if you didn’t play a land this turn, you may discard a card, then draw a card.”

When Brinelin, the Moon Kraken enters and whenever you cast a spell with mana value 6 or greater, you may return target nonland permanent to its owner’s hand.
Partner (You can have two commanders if both have partner.)

If The Prismatic Piper is your commander, choose a color before the game begins. The Prismatic Piper is the chosen color.
Partner (You can have two commanders if both have partner.)

When Alharu, Solemn Ritualist enters, put a +1/+1 counter on each of up to two other target creatures.
Whenever a nontoken creature you control with a +1/+1 counter on it dies, create a 1/1 white Spirit creature token with flying.
Partner (You can have two commanders if both have partner.)

Whenever a commander you control attacks, put a +1/+1 counter on it.
Partner (You can have two commanders if both have partner.)

Ghost of Ramirez DePietro can’t be blocked by creatures with toughness 3 or greater.
Whenever Ghost of Ramirez DePietro deals combat damage to a player, choose up to one target card in a graveyard that was discarded or put there from a library this turn. Put that card into its owner’s hand.
Partner (You can have two commanders if both have partner.)

Mono Eminence — As the game begins, if Mr. Wiggles is your commander and your deck’s color identity is monogreen, at the beginning of your first upkeep, search your library for a Forest card, put it onto the battlefield tapped, then shuffle.
Flying
Partner (You can have two commanders if both have partner.)

If Enolc is one of two partner commanders, it’s a copy of your other commander except it retains its name. (Including mana cost.)
If Enolc isn’t a commander, you may cast it as though it was a copy of any of your commanders.
Partner (You can have two commanders if both have partner.)

Mono Eminence — As the game begins, if Theopholos is your commander and your deck’s color identity is mono-white, your starting life total is increased by 10.
Whenever Theopholos attacks, if your life total is greater than your starting life total, creatures you control get +1/+1 until end of turn.
Partner (You can have two commanders if both have partner.)

Mono Eminence — If Mzed is on the battlefield or in your command zone and your deck’s color identity is mono-red, creatures you control have haste.
At the beginning of your combat step, create a 1/1 red Mercenary creature token with “This creature can’t block.”
Partner (You can have two commanders if both have partner.)

Horsemanship (This creature can’t be blocked except by creatures with horsemanship.)
Commanders you control have horsemanship.
Partner (You can have two commanders if both have partner.)

Mono Eminence — As the game begins, if Lorthos is your commander and your deck’s color identity is mono-blue, your starting hand size becomes 8. (You draw 8 cards and your maximum hand size is 8.)
Whenever Lorthos attacks, tap all permanents your opponent controls.
Partner (You can have two commanders if both have partner.)

Mono Eminence — If Auntie Flint is on the battlefield or in the command zone and your deck’s color identity is mono-black, creatures you control get +1/+0.
Whenever Auntie Flint attacks, another target creature gains fear until end of turn.
Partner (You can have two commanders if both have partner.)

Deathtouch
Whenever Silas Renn, Seeker Adept deals combat damage to a player, choose target artifact card in your graveyard. You may cast that card this turn.
Partner (You can have two commanders if both have partner.)

Whenever Armix, Filigree Thrasher attacks, you may discard a card. When you do, target creature defending player controls gets -X/-X until end of turn, where X is the number of artifacts you control plus the number of artifact cards in your graveyard.
Partner (You can have two commanders if both have partner.)