This build is a great sustain arcanist which has huge damage through DoTs and direct damage mixed in, once you pop Balgorh set and proc the passive with 500 ultimate, the build sees;
7000+ Weapon Damage
25,000+ Penetration
90%+ Crit Damage
25+ Weapon Critical.
and Resistances of 19,000+. buffed with 2100+ critical resistance
Solid build with a fantastic run-through with group play against groups, has been tested 1 v X with success, the 2nd most damage in 95% of the logs has been plague slinger, which does unstoppable damage and lays waste to groups.
Silver shards are the main spammable, used against AoE targets and spreading Plaguebreak and multiple DoTs, mixing in Arcanist beam and Flail.
The back bar is for major defending (with ice staff using magicka as your block resource) and buffing yourself majorly. The front bar is a pure offense. During the fight using Flail to build a crux and using your Runeward is a life saver.