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 :

• S23 Meschiken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Turkey Tail
• S10 Kikyo Umbrella

  6% chance to convert damage taken to HP positively.
• Great Wooden Hammer

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• S58 Scroll of Shadows

  Increases damage by 6% and dodge rate by 5%.
• Native Horn

  Increase max. CP by 3%, Recover 1% HP with every Charge.
• Hide Guitar
• Hanami Fan

  Ignore 4% targets dodge and increase max. HP by 2%.
• S9 Akazonke Gunbai

  Increase 4% critical rate and ignore 4% targets dodge.
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• Zombie Hand

  Increase attack damage by 15%. But each turn reduce 200 HP and 300 CP.
• Triple Taiko

  Increases Max. HP by 4% and healing power of scrolls by 100%.
• Ichimoku Gourd
• Choco Tama

  Increase accuracy by 5% and increase healing power of scrolls by 25%.
• Wings of Eternal Eclipse

  Increases critical chance by 3%. Ignores 6% of the targets dodge rate.
• Tail of Jyubi

  Forged with chakra of the legendary tailed beast, Jyubi. Increase attack damage by 15% but reduce max. CP by 30%.
• Love Missile

  Additional 60 HP damage upon all attack.
• Gunbai: Gyoji
• Super Rabbit Doll

  Increase damage by 9%.
• S31 Yabusa Dual Head Spear

  Increase 4% damage and 4% critical rate.
• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• Call of the Angel

  Reduce damage taken by 100. Has 6% chance to convert damage taken to HP positively.
• Ame no Kemagatama

  Increase 3% accuracy.
  Additional 30 HP damage upon all attack.
• Matsuyama Fan

  Ignore enemys dodge rate by 6%.
• Balloon Rabbit Doll

  Has 8% chance to convert damage taken to HP positively.
• Decorative Rope
• Spinning Wheel

  Recover user's max HP by 1% each turn. Increases user's max CP by 2%. Converts 10% of damage taken into CP.