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 :

• Red Ukiyo-e Kite

  4% chance to convert damage taken to HP positively and increase max. HP by 2%.
• Assault Kite

  Recover 100 HP and 80 CP at the start of every turn.
• S37 Ring of Chakra Flame

  Increase attack damage by 7%.
• Three Ring Magatama

  Increase 2% accuracy.
  Additional 12 HP damage upon all attack.
• Shadow Twin Blades
• Light of Eternal

  Increase Max.HP 3%. Recover 3% SP at the start of every turn.
• Sakura wah

  Restores HP by 3% and CP by 99 each turn.
• Love of coffee

  Prepared with love and empathy. Recovers 100 HP every turn. Increases attack damage by 4%.
• Love Missile

  Additional 60 HP damage upon all attack.
• War Flag: World Peace
• Scroll and Blade

  Has 11% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills. Increase critical rate by 5%. 8% chances of using Jutsu without CP.
• Christmas Wreath

  Increase agility by 1 and Max HP by 1%.
• Shoguns Badge Gourd

  Increase Max. HP & CP by 3%
• Great Wooden Hammer (3 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Sanmoku Gourd

  Reduce damage taken by 65.
• Shishimai Back

  Restores 3% of users max HP.Has 4% chance to convert damage taken to HP positively.
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• Sakura Rain Battle Umbrella
• Father's Heart (II)

  Reduce damage taken by 7%. Reduce damage taken by 150.
• Blue Shell
• Ocean Ring

  Increase 1% accuracy.
  Additional 2 HP damage upon all attack.
• Great Wooden Hammer (7 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Ink Cloud

  Additional 40 HP damage upon all attack.
• Curved Spear
• S12 Golden Bujin Jitte

  Increase dodge rate by 10%.
• S21 Rokulin Gunbai

  Ignore enemys dodge rate by 8%.
• Dark Plate Twin Blades