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 :

• S17 Scorching Sun Lantern

  Recover 10% cp after dealing damage.
• Clouds And Mist Raijinco
• S79 Blood Feather

  Has 15% chance to convert damage taken to HP positively.
• Santa Gift Bag

  Reduce damage taken by 30.
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• Paper Windmill

  Additional 20 HP damage upon all attack.
• FIFA Whistle

  Recover 100 CP at the start of every turn and reduces damage taken by 80.
• S13 Kishu Twin Blades

  Increase accuracy by 8%
• Sakura Gold Jewellery

  Increases users agility by 1. Restores 3% of users max HP. Has 6% chance to convert damage taken to HP positively.
• Training Dummy

  Increases accuracy by 5% and dodge rate by 4%.
• War Flag: Syoshin

  Increase mission XP reward by 100.
• Star Dawn Harp

  Increases users agility by 1. Recover CP after HP reduction. (Amount: 10% of HP reduction) Recover HP by 2% when being put on a debuff.
• Super Rabbit Doll

  Increase damage by 9%.
• Christmas Trumpet

  Ignore enemys dodge rate by 4% and recover 3% CP with every charge.
• Justice and Freedom

  Flag of the United States of America which symbolizes freedom and liberty. Recover 3% HP with every charge. Increases critical rate by 3%. Reduces damage taken by 50.
• Radish Launcher

  It will fly you to the moon! (Easter 2011 Limited Edition)
• Writing Brush
• S38 Genrei Fan

  Increase max.CP by 50% but reduce max. HP by 20%.
• Blue Crystal Wings

  Recover 15% extra CP when charge.
• Love Missile

  Additional 60 HP damage upon all attack.
• Death Wooden Coffin
• S74 Burning Wings

  Increases attack damage by 4% and Combustion chance by 25%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• Blessed Kitty

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

  Restore 100 HP every turn. Reduce damage taken by 5%.
• S24 Junsei Ring

  Increase max. HP by 5%.