Okay hold up. Is Golbez ever controllable at all? If hes in a battle like Sephiroth, but you cannot control him, he's fair game. But if you can control him in any sense, he's out.
Technically not I guess since his battles are scripted at the end.
In TAY, yeah he is controllable and usable
---Attention campers, lunch has been cancelled today due to lack of hustle. Deal with it. Current LP: Grandia HD Remaster