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 :

• 2011 Carnival Jiegu

  Ninja Saga 2nd Anniversary Carnival! Each turn recover 100 HP and 100 CP.
• Senior Kari Bagpack

  Reduce 3% damage taken.
• Purple Mixing Yellow Umbrella
• Drum: Ako
• Red Shell
• Skull Twins

  7% chance to convert damage taken to HP positively and 20% chance to absorb 1% HP of enemy who attack you.
• S37 Ring of Chakra Flame

  Increase attack damage by 7%.
• Thanksgiving Balloons

  Increase max. HP by 2%.
• MegaJingleBell

  A glorious Christmas artifact which can be used in battle. Ignores 5% of enemys dodge rate. Recovers 2% of users max HP every turn.
• Love of coffee

  Prepared with love and empathy. Recovers 100 HP every turn. Increases attack damage by 4%.
• S8 Sign of Corruption

  Wings with an ominous aura. Increases agility by 3.
• Light of Eternal

  Increase Max.HP 3%. Recover 3% SP at the start of every turn.
• FIFA Whistle

  Recover 100 CP at the start of every turn and reduces damage taken by 80.
• S11 Wood Spirit's Bow

  Increase critical chance 13%.
• Hanami Lantern

  2011 Hanami Festival - Shine! Reduce damage taken by 15.
• Merlins Magical book

  Increases attack damage 5%
• Stuff Bunny

  Increase Max. HP by 2% and Max. CP by 4%.
• Chakra Kanawa

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• S18 Evil Spirit Shield

  Reduce 14% damage taken.
• S9 Warring Empire Bulwark

  A strong and sturdy shield. Reduces damage taken by 35% but reduces the user's agility by 15.
• Wine Gourd
• Neptunes Healing

  Amazing power from Neptune. 3% chance to convert damage taken to HP positively and recover 3% HP at the start of every turn.
• Red Shuriken Skis
• Wings of Eternal Eclipse

  Increases critical chance by 3%. Ignores 6% of the targets dodge rate.
• Mischievous Candy

  Increase accuracy by 3%. Increase healing power of scrolls by 50%.
• Balloon Rabbit Doll

  Has 8% chance to convert damage taken to HP positively.
• Smart Phone