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 :

• Christmas Bag

  Reduce damage taken by 10.
• Puppet: Spider
• Justice and Freedom

  Flag of the United States of America which symbolizes freedom and liberty. Recover 3% HP with every charge. Increases critical rate by 3%. Reduces damage taken by 50.
• Shoguns Badge Gourd

  Increase Max. HP & CP by 3%
• Egg Hunter Basket

  Increase 6% accuracy. (Easter 2011 Limited Edition)
• Angel Heart (Black)

  Reduce target 8% CP on every weapon attack.
• Carrot Time Bomb

  Has 8% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%. Has 5% chance to convert damage taken to HP positively.
• Drum: Ako
• Evil Claw Hammer

  Reduce 7 HP damage taken.
• Sanmoku Gourd

  Reduce damage taken by 65.
• S76 Buckler and Sword

  Increase max.HP by 12% but reduce max. CP by 2%.
• Beast Mace
• Sealed Wood

  A back item which lost the original effectiveness.
• Tail of Hachibi

  Forged with chakra of the legendary tailed beast, Hachibi. Increase critical chance by 15% but reduce max. HP by 20%.
• Tail of Capricorn

  Increases dodge rate by 4%. Recovers 3% HP with every charge.
• Three-stringed Lute Guitar
• Blue Cloud Umbrella

  Ignore 6% targets dodge.
• Yolanda Rescue First Aid Kit
• Fairy Fishing Rod

  Each turn recover 3% HP and 100 CP
• Butterfly Wings
• S69 Skull Cloak

  Increases Max. HP by 4%. Restores HP by 4%. Increase attack damage by 6%.
• Roasted Turkey

  Restore 20 HP every turn.
• Crimson Lanterns

  Increase attack damage by 6%. Has 6% chance to convert damage taken to HP positively.
• Gummy Bear

  Restores CP by 2%. Reduce damage taken by 100.
• Hide Guitar
• Holiday Doll

  Expecting Santa in every year! Critical and dodge rate increase 3%.
• Mech of Battle Gear

  Increase critical chance 3% and critical damage 8%.