I will say try aqua mastery with archery, you can make a sort of ''Ashe'' from league of legends like that xD.

I went Aqua and Science. Aquamancers' Bounty makes you hits cold element. I'm using duel thrown weapons, they launch so fast that Oceanic Might Procs quick (every fourth hit). Went science for the lightning moves but you could go archery. Just not sure how it would work if buffing pierce damage would effect your damage since its elemental. But it has been a ton of fun and recommend it.