...and the time to invest in such a project, naturally- I would try a storm giant sword/h2h with outcry of steel for basically ranger-style movement (especially for prep gathering). Natural water breathing, storm giant vuln/resist profile, and quick prep-stacking. Second legacy is gravy and focused on the playstyle, largely, but I would roll with Enigma for maximum prep utilization.

Or you could just make a storm shieldspec pally and spend two to five minutes on prep.

Sidenote: How is the new empowerment option? The whole CREED thing... anyone embrace this yet, perhaps with arms wide open?