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 :

• S19 Magatama Soul Barrel

  Increase 4% critical rate and ignore 4% targets dodge.
• Ocean Ring

  Increase 1% accuracy.
  Additional 2 HP damage upon all attack.
• Sakura wah

  Restores HP by 3% and CP by 99 each turn.
• Master Scroll

  Restores HP & CP by 3%.
• Tailed Beast Chakra Crystal

  Increase 3% damage.
  Reduce 3% damage taken.
  Recover 2% HP each turn start.
• S35 Mini Teiko

  Increase agility by 1 and ignore enemys dodge rate by 2%.
• Sakura Fan

  Recover 20 HP and 150 CP at the start of every turn.
• Bell of Beast

  Recover HP by 3%. 15% chance to absorb 3% HP of enemy who attack you.
• Dark Blade

  Increase 2% critical rate and ignore 2% of targets dodge.
• Angel Wings

  Increase 3% attack damage and ignore 3% targets dodge.
• Assault Kite

  Recover 100 HP and 80 CP at the start of every turn.
• Python Scales Raijinco
• Writing Brush
• S56 Curse Brush

  A legendary Ink Brush that has the ability to materialize drawings. Increase critical rate by 5% and accuracy by 6%.
• Light of Eternal

  Increase Max.HP 3%. Recover 3% SP at the start of every turn.
• S78 Wandering Soul

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

  A glorious Christmas artifact which can be used in battle. Ignores 5% of enemys dodge rate. Recovers 2% of users max HP every turn.
• S7 Gorgeous Butterfly

  Increase agility by 2. Recover 20% extra CP when charge.
• Tail of Capricorn

  Increases dodge rate by 4%. Recovers 3% HP with every charge.
• Ronin Straw Hat

  Additional 100 HP damage upon all attack.
• Scroll: Guren
• Father's Heart

  Reduce damage taken by 6%.
• Hanami Fan

  Ignore 4% targets dodge and increase max. HP by 2%.
• Village Red Lantern
• Death Wooden Coffin
• Ishiyama Lantern

  Reduce damage taken by 49.
• Champion Cup!

  Ultimate prize for Champions.