Kinda pointless to answer since s3 starting soon, but here, this may help you
First: you wont deal huge dmg with lvl 81
Follow these builds:
https://forums.d2jsp.org/topic.php?t=102940554&f=168- get the right 4/4 rolls on weapons and 925 lvl (dmg while berserking, dmg to close, +str, +all stats)
- (+all stats helps you to reach some legendary nodes for your glyphs additional bonuses)
- Level up your glyphs to increase radius and multipliers