
Create a Character (Any nonlegendary creature can choose this as its Background. It becomes legendary and can be your commander.)
Commander creatures you ownCommander creatures you ownAny creature that is your commander, wherever it is. This is how a Background gives its ability to the commander it is paired with. are Clerics, Rogues, Warriors, and Wizards in addition to their other types.
As long as you have a full partyfull partyYour party is up to one each of Cleric, Rogue, Warrior and Wizard among creatures you control. Four makes a full party., if an ability of a creature you control triggers, that ability triggers an additional time.
Hover an underlined rule to see what it means.
Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.
A Background can be a second commander alongside any creature with Choose a Background.