When my suras were 150-160 I used a +8 Thanatos Hammer with a Peco Peco Egg card in it until my level/HP scaled enough to one shot with Hunter Fly. +_+ You could also try a highly upgraded Bungisngis Turkey on your Head for more HP boosting and switching to Vanargand/Rideword when you need SP. (Or regain SP by using Power Absorb when Rising Dragon is active) Since you're stacking HP leech gears, you could also get a Succubus Pet!
It also looks like you're using Gentle Touch: Energy Gain. I would recommend using Revitalize if you have it until higher levels!
For more hit you could try using Sesame Pastries if you don't mind more consumables, lol! From the video it looks like you should have 100% hit on Big Bells, though. Are you sure you're not accidentally targeting the Cursed Books instead?
By 165+ I think I could one-shot without using +20 foods or Revitalize, and only using HP increase/Takoyaki.
Edited by scrunch3y, 04 March 2017 - 12:26 AM.