Have you ever tried using Mohgwyn's Sacred Spear against Balancers?

If you haven't yet, you should try if you get the Mohgwyn's Sacred Spear next time, it was EPIC.

Would be even better if you have a Raider teammate, Balancers' attacks can barely hit you when you are on Raider's tombstone.

Btw Devourer's Scepter is also fantastic.