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 :

• Bell of Beast

  Recover HP by 3%. 15% chance to absorb 3% HP of enemy who attack you.
• Folding Paper Fan
• New Year Kadomatsu

  Recover 100 HP and 100 CP at the start of every turn.
• S62 Black Steel Swords

  Restores 5% of users max HP.
• Magical Wreath

  Recover HP by 2% and reduce 4% damage taken.
• Banana Back Item

  Banana Back Item
• Water Symbol Guitar
• Curved Spear
• Dark Plate Twin Blades
• Tail of Kyubi

  Forged with chakra of the legendary tailed beast, Kyubi. 100% immune to Burn effect and increase 3% Combustion chance.
• Sand Gourd
• Childhood Memories

  Mothers Day 2011 Limited Edition
• Light of Eternal

  Increase Max.HP 3%. Recover 3% SP at the start of every turn.
• Dual Blade of Fire

  Increase 3% damage made, recover self 2% HP each turn.
• Big Cheese

  Recover CP after HP reduction. (Amount: 10% of HP reduction)
• Ame no Kemagatama

  Increase 3% accuracy.
  Additional 30 HP damage upon all attack.
• Dark Secret Seal

  Increases critical chance by 4%. Has 12% chance to Restrict anyone who attacks the user.
• S16 Umbra Fire Wheel

  Additional 170 HP damage upon all attack.
• S14 Profound Tentacles

  35% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• S37 Ring of Chakra Flame

  Increase attack damage by 7%.
• GM Phone

  GM Phone
• Flag of the Burning Legion

  Reduce 3% damage taken and 12% chance to absorb 2% HP of enemy who attack you.
• Ancient Shinobi War Decorated

  Additional 60 HP damage upon all attack.
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• Wood Top
• Scroll: Guren
• Mini Octopus