3.23 PoBB: https://pobb.in/ggyjKQ0BSawM

This build revolves around few things, though Crest of Desire helm being the center piece. The plus to level and quality to socketed gems and double damage modifier make it a perfect item to use with skills that rely on gem levels. Explosive Concoction of Destruction being one of these gems made it a great candidate specially since we are a pathfinder and having access to flask nodes we can rely on Dying Sun flask to provide the much needed additional projectiles. In this build I have 4 projectiles total, but with additional flask effect and/or additional projectile charms, one could have more than 4. I decided to go with Ashes of the Stars amulet versus something like Replica Dragonfang's Flight amulet because of the quality it adds, ensuring I have near permanent sustain on my flasks. Speaking of flasks, if you wanted to just boss with this build then Master Distiller node is a great choice, running Bismuth or Diamond flask or potentially both, but you would have to sacrifice the Rumi's flask (defense) or another elemental flask (offense). I chose to go for as much block chance and I could which is (87% and 71% spell block) but one could also forgo that defensive mechanic all together and/or just focus more on things like offensive/different charms. I also went for Vessel of Vinktar because it provides leech and a nice damage bonus and being shocked is negated thru Tempest shield. Another way to get more offense is using Ancestral Protector. Being lazy (not wanting to press more buttons than I have to) but also liking the life gained on hit mechanic via my watcher's eye, I am running Vitality aura. I think the damage is more than sufficient, but with just the few tweaks that I mentioned you can double your damage!