Tbh the most memorable aspects of Golbez for me are when he is able to shrug off Meteo from Tellah, and then Bolt 3 Cecil down a flight of stairs.
He caused the death of your key mage for the mid game, and then follows it up with the post Calcabrina battle where he has his Shadow Dragon slowly devour your party after he used Holding Gas to immobilize them.
True to his worry over the village of the Summoners, Rydia shows up, frees Cecil( and possibly Jump exploits Kain), and proceeds to kick his and his dragon's ass.
And it's a total victory. He pretty much dies. The only thing left of him is his gauntleted hand. Which proceeds to crawl along the ground and take the Crystal of Darkness anyway, because he's been fully brainjacked by Zemus, and is merely a puppet. After that he never directly engages the party again, winning the next Crystal of Darkness by brainjacking Kain.
The way I see it, they are trying to do something FFXIV original with Golbez as an imposing visual callback. I can admit my nostalgia is wanting it to be good, and it's blunting my cynicism, but I am totally interested in the vague line about, "The Blessed Damned opening the Gate."
