Originally Posted by Tomitain

Yeah, broken abilities or no Kerria is still one of the best Knights, possibly THE best Knight, when it comes to dealing damage to a single target. Sakura, Alpinia and Mei Plumblossom deal comparable damage when their skill procs but Alpinia is the only one of the three who shares Kerria's ability to regain HP based on the damage dealt.

When it's purely single target we're talking, then there's actually another girl able to outdamage Kerria.
Anemone.