Fun build lots of move speed and healing. Would recommend a macro to spam your starfall (can swap out ess of pain with ess of protection if you feel pretty squishy) i usually swap them out around my 4th loop (would recommend leveling ess of spiral before other essences for more damage early)
P.S. the fireball and glacial core was not my build, but i tweaked it by adding in starfall and shout for more damage and i find it to be very fun
-Good luck out there travelers!