Cataclysm Molten Striker [20k DPS with Leech! Penetration! No BM!]

Prism Guardian gives us high mana regen with a minimal loss of life which enables us to not use blood magic, I have a legacy one but you don't need it, it just gives more resists

Doryani's Catalyst is no doubt one of the BiS for one handed molten striking with leech!

The Three Dragons gives us a non-tooltip DPS boost through shock stacking (we shock stack very fast with high attack speed and many many projectiles) of course that is with the help of chance to shock nodes on top of the tree

Pyre let us get the full benefit of hatred when using avatar of fire

Atziri's Foible (corrupted) amplifies the mana regen of our BM clarity and lowers requirements (you will need it) the corrupted fire dmg leech is also essential

Doryani's Invitation is used mainly for its leech, but its stats are great as well

Static Blows (and its chance to shock bro) near the top of the tree to synergize with three dragons and get mad stacks

Sovereignty cluster allows us to run two 60% auras on our mana pool, reduce the life tax of our BM clarity and ofc boost all three auras

Avatar of Fire should be self explanatory

Resolute Technique we don't crit, don't have much dex, might as well not worry about accuracy

Unwavering Stance and Iron Reflexes Last thing you want to have when you are trigger spamming molten strike in a large group is to get stunned (or frozen)

Iron Grip and Point Blank Greatly enhances the damage of our molten projectiles