Shoot. Anything but those subclasses, Anything! Those subclasses go against every rule besides being the missing element type. They're boring and I wouldn't use any of them ever. Well, I'd use the Solar Titan just because the word Solar is next to it. And Arcweaver? Not even one word, it's Arc Weaver. It's breaking the compound word rule and its first word is Arc, they didn't even try to hide it. They could have done Stormweaver, Ionweaver, Rodweaver, Boltweaver, Voltweaver... Anything that isn't "Arc"-weaver.

I think you're overreacting they seem fine. Titan especially seems sweet, also names are always subject to change. Gjallarhorn used to be called The Wolfpack