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 :

• Successor Fan

  Restores HP & CP by 2%. Has 7% chance to freeze enemy who attacks user (2 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Scroll: Kinjutsu I
• Master Scroll

  Restores HP & CP by 3%.
• Shadow Umbrella
• S9 Warring Empire Guarding Bow

  An ancient enchanted bow with great range used in warfare. Increases accuracy by 10%. Restore 100 HP every turn.
• Gunbai: Gyoji
• Scroll: Terminated Rock
• Angel Heart (Black)

  Reduce target 8% CP on every weapon attack.
• S12 Ancient Blood Evil Gourd

  Increase max. HP by 5%. But reduce Max.CP by 1%.
• Venom Ghost

  Has 5% chance to convert damage taken to HP positively. Recover HP by 100 every turn.
• Senior Kari Bagpack

  Reduce 3% damage taken.
• Charming Aura (Red)

  2012 Valentines day limited aura, increase all damage 2%.
• Wooden Hammer
• S32 Black Senbu

  Recover HP by 4% and reduces damage received by 3%.
• Rose Bouquet

  Recover CP by extra 5% per charge
• GM Goldfish

  GM Goldfish
• Cursed Devil

  Increase attack damage by 15%. But reduce max. HP and max. CP by 10%
• Ritual Taiko
• White Guitar
• Flour Stick
• S20 Empire Battle Gear

  6% chance to convert damage taken to HP positively.
• Tail Hunter Back Item

  Increase max. HP by 3%.
• S49 Serpent Dragon Chakram

  An exceptional weapon crafted with serpent and dragon remains. Increases agility by 1 and accuracy by 7%.
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• S83 Four Wings

  Increase dodge rate by 8%.
• S12 Golden Bujin Jitte

  Increase dodge rate by 10%.
• Prestige Purple Dragon

  Increase attack damage by 5%. Recover 100 HP at the start of every turn.