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 :

• S41 Dragon Gunnery

  Increase 25% Combustion chance, Ignore enemys dodge rate by 5%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Mirror of Shamisen
• Thanksgiving Candle

  Has 15% chance to absorb 2% HP of enemy who attack you. Increase 7% Combustion chance.
• Sakura Straw Hat

  Recovers 2% of users max HP every turn.
• Three-stringed Lute Guitar
• Nightmare Grudge

  Ignore 4% targets dodge.
• Shadow Twin Blades
• Rose Cloak

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• Sakura Lucky Bag

  Increase 3% damage, 4% chance to freeze attackers for 1 turn . Frozen target cannot move but damage taken is reduced by 80%
• Smoothbore Musket

  Increase 10% damage.
  Reduce 3% damage taken.
• Hanami Lantern

  2011 Hanami Festival - Shine! Reduce damage taken by 15.
• S82 Amethyst Skull

  Increase purify chance by 5%. Recover 15% extra CP when charge.
• S54 Ebony Nunchaku

  Increases damage by 7%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Charming Aura (Pink)

  2012 Valentines day limited aura, reduce damage 2%.
• Great Wooden Hammer

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• S25 Musha Pipa

  Increase 4% critical rate and ignore 4% targets dodge.
• Paper Windmill

  Additional 20 HP damage upon all attack.
• Giant Copper Coins

  Increase Mission gold reward by 30%.(Mission Only)
• S5 Possessed Koto

  Increase purify chance by 7%. Reduce jutsu CP consumption for 10%. Has 15% Chance to stun target when attack with weapon for 1 turn.
• Sealing the soul barrel
• Patriot Aegis

  A mythical shield that can block even the most vicious attacks. Increases max HP by 3%. Has a 60% chance to recover 5% of maximum HP and reduces damage taken by 75.
• Hanami Folding Fan

  2011 Hanami Festival - Usagi! Increase dodge rate and critical rate by 3%.
• Stuff Bunny

  Increase Max. HP by 2% and Max. CP by 4%.
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• Wine Gourd
• Bear of Affection

  Increase dodge rate by 3% and ignore target dodge by 3%.
• Scroll: Messenger (7 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.