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 :

• Puppet: Hakuki (7 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Mirror of Shamisen
• Bell of Fortune

  6% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Hanagara Hagoita

  Increase max. HP by 3%.
• S2 Scroll Capsule

  Increase attack damage by 8%. Recover 7% cp after dealing damage.
• Great Stinger

  Reduces damage taken by 3%. Converts 9% of damage taken into CP.
• Togatsuki Paper Fan

  Increase max. CP by 10%.
• Ukon Three Blades
• Beast Mace
• Scroll: Sun of Campaign
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%. But reduce critical chance by 1%.
• Mini Goldfish
• S23 Meschiken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• S31 Yabusa Dual Head Spear

  Increase 4% damage and 4% critical rate.
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Holiday Doll

  Expecting Santa in every year! Critical and dodge rate increase 3%.
• Zombie Hand

  Increase attack damage by 15%. But each turn reduce 200 HP and 300 CP.
• S77 Curse Dragon

  Increases attack damage by 9% and critical damage 10%.
• Christmas Bag

  Reduce damage taken by 10.
• Training Dummy

  Increases accuracy by 5% and dodge rate by 4%.
• Leos Recurve Bow

  Increases damage by 4% and dodge rate by 1%.
• Ice Cystal Raijinco
• Ferret Tail
• S18 Evil Spirit Shield

  Reduce 14% damage taken.
• S13 Kishu Twin Blades

  Increase accuracy by 8%
• Evil Way Lute

  Has a 50% chance to recover 5% of maximum HP. Has 10% chance to absorb 3% HP
• S26 Bashosen

  Increase 10% Combustion chance.