The Eternals Return
Celestial / Cosmic
1EA
When it seemed like all hope was lost and the X'ith'ila would unmake everything, Aeternum appeared. The Eternals returned with them and would discover the new world they found themselves in. And as a result, they would throw themselves into the war against the X'ith'ila. And thus with the return of the Eternals marked the Eternal Age.