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 :

• Writing Brush
• Toxic Spider Web

  10% chance to apply Restriction on enemies who attacks the user for 1 turn.
  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• Ghost Spider

  Reduce 72 HP damage taken.
• Three Ring Magatama

  Increase 2% accuracy.
  Additional 12 HP damage upon all attack.
• Paper Umbrella

  Increase dodge by 3%. Reduce damage taken by 80.
• 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)
• Charmed Heart

  Theres no escaping love. Increases accuracy by 5%. Adds 40 damage in all of your attacks.
• S16 Umbra Fire Wheel

  Additional 170 HP damage upon all attack.
• Virgos Eternal Wings

  Increases agility by 1. Increases users attack damage by 3%.
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Christmas Treasure Bag

  Increase agility by 1.
• First-Aid Kit

  100% of the purchase price will be donated to Japan earthquake relief.
• Black Koi
• FIFA Whistle

  Recover 100 CP at the start of every turn and reduces damage taken by 80.
• Scroll: Double Head
• Christmas Wreath

  Increase agility by 1 and Max HP by 1%.
• 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.
• Black Metal Hammer
• Thorn hammer
• Water Energy Skis
• Orange Kikyo Skis
• Flag of the Burning Legion

  Reduce 3% damage taken and 12% chance to absorb 2% HP of enemy who attack you.
• Hanagara Hagoita

  Increase max. HP by 3%.
• Scroll: Posion Attack
• Rose Cloak

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• Book of Slate

  Decreases Max. HP by 1% and Increase Max. CP by 10%. Increase 3% purify chance.
• S48 Titans Hammer

  The hammer used by titans to destroy castles in ancient times. Increases attack damage by 8% and accuracy by 5%.