Set up and play follows the regular Commander format rules but players all have these additional abilities:
Alternate win condition: At the beginning of your upkeep, if you control all five worlds, you win the game.
At the beginning of your end step, if one or more opponents lost 3 or more life this turn, gain control of an unclaimed world or a world controlled by one of those opponents.
Whenever you cast your commander, you get an orbit counter.
, pay an orbit counter: choose left or right. Each player passes control of a world they control to the next player in the chosen direction. Activate only as a sorcery.
Each world card also grants a triggered ability whenever a player gains control of it and at the beginning of their upkeep while it is in their control in their command zone.