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 :

• S14 Profound Tentacles

  35% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Turkey Tail
• Firefox Tail
• Charmed Heart

  Theres no escaping love. Increases accuracy by 5%. Adds 40 damage in all of your attacks.
• Mirror of Shamisen
• Chakra Kanawa

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Musashi Twin Blades
• Scroll: Red Curse seal
• Scroll: Sun of Campaign
• Charming Aura (Black)

  2012 Valentines day limited aura, increase critical chance 2%.
• Great Wooden Hammer (3 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• S17 Scorching Sun Lantern

  Recover 10% cp after dealing damage.
• Universal Backpack

  Increase healing power of scrolls by 100%. Each turn recover 140 HP.
• Large Wooden Hammer
• Scroll: Messenger

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• Native Drum

  5% chance to convert damage taken to HP positively.
• Bear of Affection

  Increase dodge rate by 3% and ignore target dodge by 3%.
• S31 Yabusa Dual Head Spear

  Increase 4% damage and 4% critical rate.
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• War Flag: Syoshin

  Increase mission XP reward by 100.
• 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.
• Big Cheese

  Recover CP after HP reduction. (Amount: 10% of HP reduction)
• Assault Kite

  Recover 100 HP and 80 CP at the start of every turn.
• Charming Aura (Pink)

  2012 Valentines day limited aura, reduce damage 2%.
• Ice Cystal Raijinco
• Sealing Pot

  Increases Max. HP by 4% and recover 3% HP at the start of every turn.
• Folk Folding Fan