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 :

• Decorative Rope
• Enternal Love Scroll

  Increase 5% Combustion chance and reduce 1% damage taken.
• Dark Blade

  Increase 2% critical rate and ignore 2% of targets dodge.
• S63 Stormbringer

  Increases dodge rate by 5%. Has 50% chance to absorb 2% HP of enemy who attack you.
• Charming Aura (Black)

  2012 Valentines day limited aura, increase critical chance 2%.
• Roasted Turkey

  Restore 20 HP every turn.
• Apricot Pipa
• 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.
• Neptunes Healing

  Amazing power from Neptune. 3% chance to convert damage taken to HP positively and recover 3% HP at the start of every turn.
• S38 Genrei Fan

  Increase max.CP by 50% but reduce max. HP by 20%.
• S11 Wood Spirit's Bow

  Increase critical chance 13%.
• S9 Warring Empire Guarding Bow

  An ancient enchanted bow with great range used in warfare. Increases accuracy by 10%. Restore 100 HP every turn.
• Folding Fan: Shino
• Dark Evil Sickle

  Exclusive Halloween item - the devils sickle that has 10% chance to absorb 1% HP of enemy who attack you.
• Mother's Hug

  Recover 100 HP and 2% HP at the start of every turn.
• S31 Yabusa Dual Head Spear

  Increase 4% damage and 4% critical rate.
• Shigu Twin Blades
• Ice Cystal Raijinco
• S29 Yanki Protective Magatama

  Increase accuracy by 8%
• S35 Mini Teiko

  Increase agility by 1 and ignore enemys dodge rate by 2%.
• S68 Supreme Faerie Wings

  Recover 20% extra CP when charge. Has 10% chance to convert damage taken to HP positively.
• Sealing the soul barrel
• Sakura Lucky Cat

  Ignore enemys dodge rate by 4% and increase 3% dodge rate.
• Sakura Straw Hat

  Recovers 2% of users max HP every turn.
• Blessed Kitty

  Bless on his master everyday, which increase 3% damage. Heal 1% HP in every turn.
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• S3 Energetical Can

  Increase attack damage by 10% and Combustion chance by 18%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)