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 Wreath

  Increase agility by 1 and Max HP by 1%.
• S74 Burning Wings

  Increases attack damage by 4% and Combustion chance by 25%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Dark Cry Raijinco
• Enternal Love Scroll

  Increase 5% Combustion chance and reduce 1% damage taken.
• Scroll: Taiin
• S26 Bashosen

  Increase 10% Combustion chance.
• Cheerful Snowman

  Increase Max. CP by 20%. Recover 2% HP at the start of every turn. but reduce max. HP by 12%.
• Christmas Treasure Bag

  Increase agility by 1.
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• Scroll: Messenger (3 Days)

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

  Increase attack damage by 15%. But each turn reduce 200 HP and 300 CP.
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%. But reduce critical chance by 1%.
• S2 Ancient Bone Claw

  An ancient bone that emanates great power. Increases accuracy by 8%. Recovers 100 HP every turn.
• S18 Evil Spirit Wings

  Increase 10% critical rate.
• S55 Mirror of Fantasy

  Increases damage by 6% and accuracy by 5%. Has a 7% chance to convert any damage taken to HP.
• Shishimai Back

  Restores 3% of users max HP.Has 4% chance to convert damage taken to HP positively.
• Scroll: Genbu
• S2 Scroll Capsule

  Increase attack damage by 8%. Recover 7% cp after dealing damage.
• S18 Evil Spirit Shield

  Reduce 14% damage taken.
• S83 Four Wings

  Increase dodge rate by 8%.
• S62 Black Steel Swords

  Restores 5% of users max HP.
• Three-stringed Lute Guitar
• Thanksgiving Candle

  Has 15% chance to absorb 2% HP of enemy who attack you. Increase 7% Combustion chance.
• S78 Wandering Soul

  Recover CP after HP reduction. (Amount: 15% of HP reduction) Recover 15% extra CP when charge.
• Brilliant Stock Pot

  Increase max. HP by 8% and purify chance by 2% but reduce max. CP by 8%.
• Champion Cup!

  Ultimate prize for Champions.
• Prestige Purple Dragon

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