You might want to look into an College of Lore Bard.

Vicious Mockery works great for an overly critical critic as do Cutting Words.

You could flavour both as insightful stings against the opponents abilities like how his swordsmanship lacks finesse etc.

“Geblockt” heißt dass der Katheder durch Formschluss Dichtigkeit herstellt, oder wird der irgendwie gesondert befestigt?