You aren't considering offturn attacks there, notably Master Riposte. Though yes, Essentials classes do not have novas, that is not a big surprise. This build's at-will damage is equal to Brona's even if you include Lightning Field, and it's more accurate and more crippling.
Nnnnnnnot...really...
It's more accurate than Brona because you don't have Deadly Draw yet. It's actually really even on accuracy otherwise. Additionally, if we're including Master Riposte, you gotta include Lightning Field countershots, which push Brona ahead.
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Twostuck, Homestuck RPG: http://www.gamefaqs.com/boards/8-gamefaqs-contests/62168402