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 :

• Scroll: Kinjutsu I
• Charming Aura (Red)

  2012 Valentines day limited aura, increase all damage 2%.
• Fathers Treasure

  2014 Fathers Day special back item. Doubles the TP reward from TP missions.
• Silver Torch of Zeus

  Increase mission gold reward by 300.
• Axe Hammer suit

  Increases damage and accuracy by 6%. Recover 50 HP at the start of every turn.
• Call of the Angel

  Reduce damage taken by 100. Has 6% chance to convert damage taken to HP positively.
• S8 Underworld Bulwark

  A phantom shield with demon soul. Reduce damage taken by 10%.
• Hide Guitar
• Osuzu Shinsen

  Ninja Saga 2nd Anniversary Carnival! Increase all attack damage by 5%.
• Holy Wings

  Increase accuracy by 4% and dodge rate by 3%.
• 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.
• Spinning Wheel

  Recover user's max HP by 1% each turn. Increases user's max CP by 2%. Converts 10% of damage taken into CP.
• Christmas Bag

  Reduce damage taken by 10.
• S45 Oblivion Ward

  Increases Max. HP by 3% and Max. CP by 6%.
• Roasted Turkey

  Restore 20 HP every turn.
• 4th Anniversary Back Item

  Ninja Saga 4th Anniversary edition! Recover 50 HP and 150 CP at the start of every turn.
• Sakura Straw Hat

  Recovers 2% of users max HP every turn.
• Mercy Of Libra

  Recover 2% HP at the start of every turn. And recover 3% HP with every Charge.
• Scroll: Messenger (7 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• Hanami Lantern

  2011 Hanami Festival - Shine! Reduce damage taken by 15.
• Musashi Twin Blades
• Gemini Halo Glyph

  Increases damage by 4%. Reduce damage taken by 65.
• Christmas Pudding

  Recover 200 HP and 200 CP at the start of every turn but reduce agility by 10.
• Sakura wah

  Restores HP by 3% and CP by 99 each turn.
• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• Flour Stick
• Four-Point Shuriken