Nothing has been revealed about the background of Communion. He came to Earth with the Keep to reclaim the Nu-gene which they claimed was theirs originally. He was last seen when Quantum defeated him in battle . It has not been revealed if he survived or not.
Rob Liefeld's part of the Image universe
Extreme Destroyer Prologue (vol. 1) #1 (1996)
Country of origin:
1: Extreme Destroyer Epilogue (vol. 1) #1