Xerath has a neat kit, I'll give home that. But look at the champ. He looks so outdated! His base skin as well as all the others look... An awfully lot like a chroma, or just obviously outdated. I also looked into it, and it's been at least 5 years since xerath got a skin.. Damn.
I say Xerath needs a simple visual update, much like how riot has been tweaking other champs to look as modern as the rest of the game.