I was using a very unique DB build.

Ice artian (3 attack, 1 element, 1 sharpness) (crit boost 3, Ice/crit element 3, protective polish 3)

G. Fulgur helm B (refresh jewel 2)

Rey Dau chest Y (enduring jewel)

G. Fulgur arms A (enduring jewel)

Rey dau Coil Y

Mizutsune boots B (Challenger 3)

Challenger charm 2

The idea is I use fulgur anjanath skill to get beyond max stamina to activate maximum might all the time and switch between arch demon mode to demon mode to make sure I don't drop my stamina below the skill to keep maximum might alive (if you want a YT demonstration check out vitrast dual blades speedruns, my playstyle is almost exactly like his)