D/any Balthaze UW Solo build help!!!

I get to the graspings and i pull a group kill them, and barely survive. Wait for health to regenerate then I go and pull another group and die..How am I supposed to wait out the Interrupts and even start attacking them. I can't get any health I don't know why.

This is the build.

[D/any Baltazar UW Solo;OgCjkyqG7SMXNXygfXlbibuX9gA]


Lol sorry about messing up the title. In a hurry to get out the door for my college class ^^

Usage
Grasping Darknesses
- Cast [[Avatar of Balthazar] and [[Eternal Aura] and run to the spirit and get the quest.
- Aggro the first (from the left) group of Graspings.
- Attack until they've all used their interrupt. Cast [[Heart of Fury], [[Aura of Holy Might] and [[Mystic Vigor].
- Spam Attack Skills for a high damage output.
- Repeat until all groups are dead.

Counters
- Over-aggroing.

Another tip: watch some vids on youtube , there are a lot of farming videos , including dervish UW smite farming.