Is Xerath worth picking up?

My friends new to league and wants to play a ranged AP champ it seems ( mage type ) for the most part. He says he is interested in Xerath. I was looking at the scaling for Xerath and it seemed extremely mediocre if not completely even with Syndra Syndras Q has 50 more range too and the other skills arent much out-ranged. What you guys think?
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