He's most likely the most powerful Archmage in Faerun, which is a world I often frequent.

Then I must assume that being one of his sons was quite an honor.

[Have a bit of jaw dropping awe, from this doomguard who's in charge of overseeing the destruction of many worlds] By the gods... not even the arch demons, or the lords of the 9 hells, can usually cause that kind of destructive power. What kind of titan was this man?