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 :

• Ninja Bunny Doll

  Increase 2% damage and ignore 3% targets dodge.
• Smoothbore Musket

  Increase 10% damage.
  Reduce 3% damage taken.
• Rose Bouquet

  Recover CP by extra 5% per charge
• Light of Eternal

  Increase Max.HP 3%. Recover 3% SP at the start of every turn.
• Training Dummy

  Increases accuracy by 5% and dodge rate by 4%.
• S15 Ancient Seitenken

  Recover CP after HP reduction. (Amount: 16% of HP reduction)
• S52 Gold Dragon Scroll

  Reduce damage taken by 7%. Ignore targets dodge rate by 5%.
• Bell of Fortune

  6% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• S74 Burning Wings

  Increases attack damage by 4% and Combustion chance by 25%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Puppet: Hakuki

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Sand Gourd
• Purple Mixing Yellow Umbrella
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• Sweet Treat

  Increase critical chance by 2% and dodge rate by 3%.
• Hidden Green Umbrella
• Evil Claw Hammer

  Reduce 7 HP damage taken.
• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• Mousetrap

  15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• S8 Underworld Bulwark

  A phantom shield with demon soul. Reduce damage taken by 10%.
• Flag of the Burning Legion

  Reduce 3% damage taken and 12% chance to absorb 2% HP of enemy who attack you.
• Firefox Tail
• Extra Large Presents Bag

  A large present bag, but nobody knows what it contains.
• Blue Bird Wings
• Mini Scroll
• Tai Chi Gold Gourd

  Restores HP by 4%. Increase healing power of scrolls by 500%. Reduce target 3% CP on every weapon attack.
• Mini Octopus
• S75 Trifecta Swords

  It gives off a strange feeling of vigor. Restores CP by 3%. Increases max CP by 7%.