The
incarnations of the Eternal Champion can sometimes be
summoned outside their own
world. Within the
Elric Saga he is twice so summoned, each time meeting other incarnations of the Eternal Champion, and joining with them to form
The Three Who Are One and
The Four Who Are One to fight some great
enemy too powerful for one Eternal Champion alone.
Interestingly, the same events are related in the stories of Corum, but for him they happen in the opposite order as they do for Elric.