[3.9] Hierophant Caustic Arrow Braindead af build

Hierophant Ascendancy allows us to stack tons of Mana and Energyshield while also getting tons of Area of Effect if we don´t reserve the Mana.
With Caustic Arrow getting a Buff in Radius my idea was instantly to scale it to absurd amounts.
4.000 Life and Mana with Mind over Matter is easy doable while also having around 3.000 Energyshield. Another defense layer is the huge regen we can get along the Passive tree from Templar all around to the Ranger area which will ultimately amount to 9% of Life and Mana regeneration and having Wicked Ward combined with Soul Strike to get the same effect on Energyshield.

Tons of AoE.
Using the Hierophant Ascendancy we get 125% Area of Effect allready. Traveling from Templar Start area we take Templar,Witch and Shadow AoE clusters for additional 80% AoE. For this build i am also Using Carcass Jack but it´s an absolute luxury item at this point.
Please note that this is without the added +3 Radius which will be in the 3.9 Update.