To have two commanders, both must have the partner ability as the game begins. Losing the ability during the game doesn't cause either to cease to be your commander.
Keskit, the Flesh Sculptor
You can choose two commanders with partner that are the same color or colors. In Commander Draft, you can even choose two of the same commander with partner if you drafted them. If you do this, make sure you keep the number of times you've cast each from the command zone clear for "commander tax" purposes.
Both commanders start in the command zone, and the remaining 98 cards (or 58 cards in a Commander Draft game) of your deck are shuffled to become your library.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Yongjae Choi
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
