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 :

• S54 Ebony Nunchaku

  Increases damage by 7%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• S13 Kishu Twin Blades

  Increase accuracy by 8%
• S8 Underworld Bulwark

  A phantom shield with demon soul. Reduce damage taken by 10%.
• Angel Heart (White)

  16% chance to absorb 2% HP of enemy who attack you.
• Father's Heart (II)

  Reduce damage taken by 7%. Reduce damage taken by 150.
• Soul Capturing Hammer

  Recover self 2% HP, reduce 3% damage taken.
• S28 Orochi Statue

  Increase attack damage by 4%, and recover HP by 1%.
• Light of Eternal

  Increase Max.HP 3%. Recover 3% SP at the start of every turn.
• Heian-kyo Shamisen
• Firefox Tail
• Scroll: Fire and Earth
• Champion Cup!

  Ultimate prize for Champions.
• Tail of Hachibi

  Forged with chakra of the legendary tailed beast, Hachibi. Increase critical chance by 15% but reduce max. HP by 20%.
• Toxic Village Poison Potion
• S77 Curse Dragon

  Increases attack damage by 9% and critical damage 10%.
• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• S39 Spike Hammer

  Increase accuracy by 10% but reduce max. HP by 10%.
• Scroll: Messenger (7 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%. But reduce critical chance by 1%.
• Blue Crystal Wings

  Recover 15% extra CP when charge.
• Christmas Bag

  Reduce damage taken by 10.
• Ninja Bunny Doll

  Increase 2% damage and ignore 3% targets dodge.
• Ramen Shop Lantern
• Carrot Time Bomb

  Has 8% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%. Has 5% chance to convert damage taken to HP positively.
• S7 Gorgeous Butterfly

  Increase agility by 2. Recover 20% extra CP when charge.
• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• Chakra Magatama

  Increase 2% accuracy.
  Additional 5 HP damage upon all attack.