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 :

• Twins Sakura

  Ignore 5% targets dodge.
• S19 Magatama Soul Barrel

  Increase 4% critical rate and ignore 4% targets dodge.
• Cerberus's Flame

  80% chance to burn enemy who attack user - Reduce 3% HP for 2 turns.
• S9 Akazonke Gunbai

  Increase 4% critical rate and ignore 4% targets dodge.
• Nutcracker

  Increases Max. HP by 4% and damage by 3%.
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.
• Hide Guitar
• Purple Dragon umbrella
• Screw Pattern Skis
• Ferret Tail
• Raccoon Tail
• Hanami Dango

  Reduces damage received by 7%. Restore 85 HP every turn.
• Jaws

  Ignore 4% targets dodge.
• Love Ribbon

  Additional 40 HP damage upon all attack.
• Prestige Purple Dragon

  Increase attack damage by 5%. Recover 100 HP at the start of every turn.
• Aboriginal Hunting Set

  Increase accuracy by 5% and Combustion chance 6%.
• Wings of Eternal Eclipse

  Increases critical chance by 3%. Ignores 6% of the targets dodge rate.
• Water Energy Skis
• S39 Spike Hammer

  Increase accuracy by 10% but reduce max. HP by 10%.
• Scroll: Messenger

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• Purple Mixing Yellow Umbrella
• Village Red Lantern
• Wind Storm Raijinco
• S32 Black Senbu

  Recover HP by 4% and reduces damage received by 3%.
• S48 Titans Hammer

  The hammer used by titans to destroy castles in ancient times. Increases attack damage by 8% and accuracy by 5%.
• Mirror of Thousand Hands
• Celestial Wood Raijinco