what Knai said.
Sure, a Banelord naked is not enough to fight against hordes of huge strength guys with 2 handed weapons as Dai Bakemonos. That's clear, those Dai Bakemonos hit through his armor.
But give the Banelord a Golden Shield (awe)+Luck Pendant, and let's see how it works
Probably a Vine Shield might be enough. Vine Shield + Luck Pendant would work for sure.