You might as well compare with these Back Items so you can decide which Back Items you're gonna use for ninja Saga Pvp or in Hunting House for easier killing the boss or your opponent in ninja saga PvP
These Back Items might have better effect . Here we go :

• Gemini Halo Glyph

  Increases damage by 4%. Reduce damage taken by 65.
• S35 Mini Teiko

  Increase agility by 1 and ignore enemys dodge rate by 2%.
• Ishiyama Lantern

  Reduce damage taken by 49.
• Santa Gift Bag

  Reduce damage taken by 30.
• Red Shell
• Musashi Twin Blades
• S41 Dragon Gunnery

  Increase 25% Combustion chance, Ignore enemys dodge rate by 5%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Yawata Magatama

  Increase 3% accuracy.
  Additional 20 HP damage upon all attack.
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Magical Wreath

  Recover HP by 2% and reduce 4% damage taken.
• Champion Cup!

  Ultimate prize for Champions.
• Tailed Beast Chakra Crystal

  Increase 3% damage.
  Reduce 3% damage taken.
  Recover 2% HP each turn start.
• Rose Bouquet

  Recover CP by extra 5% per charge
• Wooden Hammer
• White Guitar
• S63 Stormbringer

  Increases dodge rate by 5%. Has 50% chance to absorb 2% HP of enemy who attack you.
• S81 Wheel of Glory

  Reduce damage taken by 200. Increase Combustion chance by 15%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• S14 Ancient Yabusa Knife

  Increases attack damage 4% and ignore 3% of targets dodge.
• Soul Capturing Hammer

  Recover self 2% HP, reduce 3% damage taken.
• Venom Ghost

  Has 5% chance to convert damage taken to HP positively. Recover HP by 100 every turn.
• Harvest Treasure Bag

  Reduce damage taken by 140. Recover 5% extra CP when charge.
• Mimosa
• Virgos Eternal Wings

  Increases agility by 1. Increases users attack damage by 3%.
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• Three-stringed Lute Guitar
• Chakra Ancestor Flame

  Reduce damage taken by 175. Has 5% chance to convert damage taken to HP positively.
• Victorious Crown

  Increases accuracy by 4% and recover HP by 3%. Has 13% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.