Each Calamity Blast deals an additional 100 damage.
Reduce the damage required to generate a Calamity Blast charge by 120-600.
Generate 2-10% Power Siphon charge for each enemy hit with Calamity Blast.
Generate 3-15% Power Siphon charge for each enemy hit with Massacre Axe.
We Can Rebuild Him
Receive 5-25% increased Healing while at or below 50% Health.
Increase your maximum Health by 150-750.
This build makes it so you can absorb as much damage for the duration of your power siphon and then hit all calamity charges to get most of siphon back. This way you can take damage and burst enemies from range.
Play style is Q (fill charges) -> Right Click (hit them to get Q meter) and repeat.