im trying to find a logical loophole with this build but it really has it all

i felt a little squishy using this guide but keeping the distance was easy enough

Wow! I tried this guide, and I felt like there's no stop for me.

I didn't use Clarity though, I used teleport instead, and I did run out of mana a couple of times early-game, which didn't enable me to push midlane as hard.

This is a very nice build, getting the best of Xerath's advantages, though it still lets him be kinda squishy, but of course, with some situational items, this ain't a problem.
Nice job!