^ Flavor of the week. He is hella powerful, but I'm still not sure if he's done enough to put him over Gog just yet...
a.) Gog can absorb a shit-ton of energy(seemingly any type) and use it to further amp himself:
http://www.turboimagehost.com/p/16032973/1.jpg.html
b.) Gog's perception/reaction speed is off the charts...
*Easily perceives and reacts to Flash's [failed] blitz-attempt:
http://www.turboimagehost.com/p/16032980/5.jpg.html
*Is able to catch Rip Hunter, despite Rip moving in between nanoseconds at the time:
http://www.turboimagehost.com/p/16032975/2.jpg.html
http://www.turboimagehost.com/p/16032977/3.jpg.html
http://www.turboimagehost.com/p/16032978/4.jpg.html
(Gog's perceptions/reactions>>nanosecond-level.)
c.) Wields a staff that contains...
*The power of a dozen red suns:
http://www.turboimagehost.com/p/16033002/9.jpg.html
*The combined power of: the Guardians+the Source+Zeus+Shazam:
http://www.turboimagehost.com/p/16033003/10.jpg.html
d.) Aside from the above offensive capabilities, it took 2 versions of Superman and Dianna just to [barely] overpower Gog physically:
http://www.turboimagehost.com/p/16032996/6.jpg.html
http://www.turboimagehost.com/p/16032998/7.jpg.html
(note that Gog also possesses HV potent enough to down the aforementioned team.)
e.) Gog can tank planetary explosions:
http://www.turboimagehost.com/p/16033013/11.jpg.html
http://www.turboimagehost.com/p/16033015/12.jpg.html
f.) Gog is resistant to stab-attacks from magical items:
http://www.turboimagehost.com/p/16033000/8.jpg.html