Which is wrong. The scan of Griever explictly tells you that he was summoned through Ultimecia's power. This impiles that Ultimecia was the only one in the FF8 world that summoned Griever. Nobody else.
Secondly, Griever was made up INSIDE the mind of Squall. Were the normal GFs made that way? No. As the game shows us, the SeeDs have a certain power (Draw) that allows them catch certain already-existing (non-made up) GFs and the power to summon such drawed GFs... this works both ways (gameplay and story).
From the facts above and Ultimecia's actions, it's pretty obvious that in order for a made-up thing from your mind to be summoned, you would need a higher power... like Ultimecia.
Uh, troll? Restorting to using cheap excuses, are you now? Man up and accept it. Everybody loses sometimes...






