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 :

• Raijin Raijinco
• Magical Wreath

  Recover HP by 2% and reduce 4% damage taken.
• S79 Blood Feather

  Has 15% chance to convert damage taken to HP positively.
• Tail Hunter Back Item

  Increase max. HP by 3%.
• Little Shikigami

  Increases accuracy by 5%. Adds 80 damage in all of your attacks.
• New Year Kadomatsu

  Recover 100 HP and 100 CP at the start of every turn.
• Paper Windmill

  Additional 20 HP damage upon all attack.
• Scroll: Taiin
• Gummy Bear

  Restores CP by 2%. Reduce damage taken by 100.
• Taoist Spirit Stone

  Increases Max. HP by 3% and Max. CP by 5%. Increase purify chance by 1%.
• Soul Capturing Hammer

  Recover self 2% HP, reduce 3% damage taken.
• Balloon Rabbit Doll

  Has 8% chance to convert damage taken to HP positively.
• Scroll: Double Head
• Dark Secret Seal

  Increases critical chance by 4%. Has 12% chance to Restrict anyone who attacks the user.
• Fire Symbol Guitar
• Togatsuki Paper Fan

  Increase max. CP by 10%.
• Blue Shell
• Skull Twins

  7% chance to convert damage taken to HP positively and 20% chance to absorb 1% HP of enemy who attack you.
• Red Shell
• S65 Transcendent Flame Wings

  Remnants of a powerful fire spirit. Increases attack damage by 7% and increase 20% Combustion chance. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Ninja Snowman

  3% chance to convert damage taken to HP positively.
• War Flag: World Peace
• Aboriginal Hunting Set

  Increase accuracy by 5% and Combustion chance 6%.
• S60 Amber Jewel Wings

  Increases attack damage by 10% and increase 5% Combustion chance.
• Shield of Holy Beast

  Reduce 5% damage taken. 6% chance to convert damage taken to HP positively.
• Cornucopia

  Increase healing power of scrolls by 100%. Has 6% chance to convert damage taken to HP positively.
• Death Wooden Coffin