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 :

• S12 Golden Bujin Jitte

  Increase dodge rate by 10%.
• Charming Aura (Black)

  2012 Valentines day limited aura, increase critical chance 2%.
• Mercy Of Libra

  Recover 2% HP at the start of every turn. And recover 3% HP with every Charge.
• 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.
• Great Stinger

  Reduces damage taken by 3%. Converts 9% of damage taken into CP.
• Cerberus's Flame

  80% chance to burn enemy who attack user - Reduce 3% HP for 2 turns.
• Sagittarius Hunting Set

  Increases dodge rate by 4%. Additional 80 HP damage on all attacks.
• Matsuyama Fan

  Ignore enemys dodge rate by 6%.
• Ninja Bag

  Increase healing power of scrolls by 20%.
• Mech of Battle Gear

  Increase critical chance 3% and critical damage 8%.
• S3 Energetical Can

  Increase attack damage by 10% and Combustion chance by 18%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Three-stringed Lute Guitar
• Leopard Cat Tail
• Master Scroll

  Restores HP & CP by 3%.
• Scroll: Genbu
• S76 Buckler and Sword

  Increase max.HP by 12% but reduce max. CP by 2%.
• S5 The Guider

  Increase purify chance by 7%. Recover 8% HP when purify. Recovers 4% of the user's max HP.
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• Ghost Spider

  Reduce 72 HP damage taken.
• Charming Aura (Pink)

  2012 Valentines day limited aura, reduce damage 2%.
• Nutcracker

  Increases Max. HP by 4% and damage by 3%.
• Carnival Fan

  Dance with the Fan during Ninja Saga Anniversary Carnival! Increase all attack damage by 3%.
• Zombie Hand

  Increase attack damage by 15%. But each turn reduce 200 HP and 300 CP.
• S35 Mini Teiko

  Increase agility by 1 and ignore enemys dodge rate by 2%.
• S56 Curse Brush

  A legendary Ink Brush that has the ability to materialize drawings. Increase critical rate by 5% and accuracy by 6%.
• S9 Ancient Akazonke Gunbai

  Increase critical rate and accuracy by 4%. But reduce Max.HP by 2%.
• Raijin Raijinco