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 :

• Sakura Lantern

  Increase Combustion chance by 10%.(Minimum requirement of 1 Attribute Point in Fire to activate combustion effect). Has 10% chance to absorb 2% HP of enemy who attack you.
• Karasu Miya Falcon

  Increase dodge rate by 6%.
• Blue Wolf Tail
• Scroll: Yinyang Seal
• Three-stringed Lute Guitar
• White Metal Hammer
• Little Shikigami

  Increases accuracy by 5%. Adds 80 damage in all of your attacks.
• S23 Meschiken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Christmas Treasure Bag

  Increase agility by 1.
• S16 Umbra Fire Wheel

  Additional 170 HP damage upon all attack.
• Water Symbol Guitar
• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• Sealed Wood

  A back item which lost the original effectiveness.
• Taurus Wand

  A necromantic wand with a figurehead of a bull. Used by necromancers in ancient times to amplify their power. Recover 100 HP at the start of every turn. Has a 12% chance to absorb 3% HP of enemies who attack you.
• Straw Hat

  Increase dodge rate by 3%.
• Yolanda Rescue First Aid Kit
• Sakura Lucky Cat

  Ignore enemys dodge rate by 4% and increase 3% dodge rate.
• S14 Ancient Yabusa Knife

  Increases attack damage 4% and ignore 3% of targets dodge.
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• Father's Heart

  Reduce damage taken by 6%.
• Gold Wand

  Ignore 5% targets dodge.
• S3 Fossil of Magatama

  Increase purify chance by 6%. Has 10% chance to convert damage taken to HP positively.
• Choco Tama

  Increase accuracy by 5% and increase healing power of scrolls by 25%.
• S65 Transcendent Flame Wings

  Remnants of a powerful fire spirit. Increases attack damage by 7% and increase 20% Combustion chance. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Chakra Magatama

  Increase 2% accuracy.
  Additional 5 HP damage upon all attack.
• Spartan Shield

  Restore 100 HP every turn. Reduce damage taken by 5%.
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.