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 :

• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• S67 Omni Cloud

  Increase accuracy by 6% and dodge rate by 5%.
• Bell of Fortune

  6% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Hanami Fan

  Ignore 4% targets dodge and increase max. HP by 2%.
• Karasu Miya Falcon

  Increase dodge rate by 6%.
• Ocean Ring

  Increase 1% accuracy.
  Additional 2 HP damage upon all attack.
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• S80 Struggle Flag

  Recover HP by 2%. Recover 7% HP with every Charge.
• Knot of Avenger

  20% chance to absorb 2% HP of enemy who attack you. 20% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Puppet: Hakuki

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Golden Torch of Zeus

  Recover 150 HP every turn
• Kettle
• Great Wooden Hammer (3 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Drum of Euphoria

  Recover 3% HP at the start of every turn, and recover 3% HP with every Charge.
• S66 Dark Wings

  Remnants of a powerful dark spirit. Increases attack and critical rate by 4%. Increases accuracy by 5%.
• S72 Hero Twin Axe

  Increase 12% Combustion Chance and recover 3% HP at the start of every turn. (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.
• S9 Warring Empire Bulwark

  A strong and sturdy shield. Reduces damage taken by 35% but reduces the user's agility by 15.
• Shigu Twin Blades
• Black Silver Electric Guitar
• 2011 Carnival Jiegu

  Ninja Saga 2nd Anniversary Carnival! Each turn recover 100 HP and 100 CP.
• Banana Back Item

  Banana Back Item
• Grand Light Gourd

  Increase 3% damage
• Firefox Tail
• First-Aid Kit

  100% of the purchase price will be donated to Japan earthquake relief.
• Hanagara Hagoita

  Increase max. HP by 3%.
• Hidden Green Umbrella