Oh yeah, that. I keep getting the Bigby's Hand line confused.
I said enough screentime that details his feats. Casting Energy Drain does not say anything about his feats. Casting Maximized Energy Drain does, or at least that he has some way of Maximizing it. Knowing his spell list does not mean knowing his feats.I don't agree Xykon hasn't had enough screentime. He's had tonnes of screen time, and has cast hundreds of spells across the comic and books. We have almost his complete spell list! This idea we can't pin it down I just don't buy at all. I specifically gave a bunch of examples to show how him being level 27+ actually fits with a lot of the other stuff we've seen.
Edit: Oh, and I have been mentioning that Xykon, as an epic Sorcerer, would get bonus feats. Even if we assume that Xykon has three Improved Spell Capacities and Epic Spellcasting as epic feats, he only needs to be level 26+.