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 :

• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• Ninjas Stocking

  Increase 5% Combustion chance and attack damage by 3%.
• Hanami Lantern

  2011 Hanami Festival - Shine! Reduce damage taken by 15.
• Light Cry Raijinco
• S11 Wood Spirit's Shield

  Increase max. HP by 9% and 20% chance to absorb 3% HP of enemy who attack you.
• S48 Titans Hammer

  The hammer used by titans to destroy castles in ancient times. Increases attack damage by 8% and accuracy by 5%.
• Blue Pattern Skis
• Father's Heart

  Reduce damage taken by 6%.
• Black Koi
• War Flag: Syoshin

  Increase mission XP reward by 100.
• Tailed Beast Chakra Crystal

  Increase 3% damage.
  Reduce 3% damage taken.
  Recover 2% HP each turn start.
• Red Shell
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• Golden Torch of Zeus

  Recover 150 HP every turn
• S10 Frostguard's Bow

  A magical bow that has a very long range. Reduce target 8% CP on every weapon attack.
• Dark World Hammer
• Carnival Fan

  Dance with the Fan during Ninja Saga Anniversary Carnival! Increase all attack damage by 3%.
• Great Wooden Hammer

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• S35 Mini Teiko

  Increase agility by 1 and ignore enemys dodge rate by 2%.
• Hidden Green Umbrella
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• Roasted Turkey

  Restore 20 HP every turn.
• Nutcracker

  Increases Max. HP by 4% and damage by 3%.
• Apricot Pipa
• Fire Symbol Guitar
• Poor Bag

  7% chance to convert damage taken to HP positively. Reduce damage taken by 5%.
• Gunbai: Gyoji