Build:Amphisbaena

Full Build Details
You can take Fire Affinity (15% fire dmg) From the Philosopher Skill Tree or Sigil of Ice if a Sigil Caster type of build suits you more. For the Faction you can go for Holy Mission to get Infuse Light, or go for Heroic Kingdom for the Alchemical Experiment (+15% all dmg).

Unfortunatly the Discipline Boon from Brace does nothing, Brace is only here for some CC.

With Alchemical Experiment + Fire Affinity + Warm Boon + Cool Boon + Immolate and finally Mystic Fire Imbue, you go from 18/18 to 76/32