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 :

• S50 Blood Shade Magatama

  Created with blood and molten lava, the blood shade magatama consumes the life force of anyone with malicious intent. Has a 8% chance to absorb 10% of the attackers max HP and 8% chance to convert any damage taken to HP.
• Angel Wings

  Increase 3% attack damage and ignore 3% targets dodge.
• Santa Gift Bag

  Reduce damage taken by 30.
• Hanami Fan

  Ignore 4% targets dodge and increase max. HP by 2%.
• S13 Slaughter Double Sickle

  Recover HP by 1%. 20% chances of using Jutsu without CP.
• Shoguns Badge Gourd

  Increase Max. HP & CP by 3%
• S77 Curse Dragon

  Increases attack damage by 9% and critical damage 10%.
• Dark Blade

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

  A glorious Christmas artifact which can be used in battle. Ignores 5% of enemys dodge rate. Recovers 2% of users max HP every turn.
• Sakura Lucky Bag

  Increase 3% damage, 4% chance to freeze attackers for 1 turn . Frozen target cannot move but damage taken is reduced by 80%
• Three-stringed Lute Guitar
• Kettle
• Dual Blade of Fire

  Increase 3% damage made, recover self 2% HP each turn.
• S2 Demons erosion

  Recovers 4% of the users max HP every turn. Additional 100 damage on all attacks.
• Big Cheese

  Recover CP after HP reduction. (Amount: 10% of HP reduction)
• S10 Frostguard's Bow

  A magical bow that has a very long range. Reduce target 8% CP on every weapon attack.
• S28 Orochi Statue

  Increase attack damage by 4%, and recover HP by 1%.
• Chakra Magatama

  Increase 2% accuracy.
  Additional 5 HP damage upon all attack.
• Carnival Taiko

  Play the Taiko in Ninja Saga Anniversary Carnival! Recover 5 HP and CP at the start of every turn.
• Venom Ghost

  Has 5% chance to convert damage taken to HP positively. Recover HP by 100 every turn.
• Huginn & Muninn

  Reduce 4% damage taken. Has 10% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Love of coffee

  Prepared with love and empathy. Recovers 100 HP every turn. Increases attack damage by 4%.
• Universal Backpack

  Increase healing power of scrolls by 100%. Each turn recover 140 HP.
• Great Wooden Hammer

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Banana Back Item

  Banana Back Item
• Steel Frame Tail
• 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.