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 :

• Ocean Ring

  Increase 1% accuracy.
  Additional 2 HP damage upon all attack.
• S4 Bladed Wings

  Reduce damage taken by 400. Recovers 1% of the user's max HP
• S53 Frostfire Soul

  Increases combustion chance by 15%. Has a 10% chance to freeze enemies who attacks the user for 1 turn. Frozen targets cannot act but takes 80% reduced damage.
• Native Horn

  Increase max. CP by 3%, Recover 1% HP with every Charge.
• Sakura Lucky Cat

  Ignore enemys dodge rate by 4% and increase 3% dodge rate.
• First-Aid Kit

  100% of the purchase price will be donated to Japan earthquake relief.
• Bat Back Item

  Back item design with reference from Halloween - Bats. Increase 5% dodge rate and decrease damage 5% at the same time.
• Colorful Snowflake

  Increase agility by 1. Has 15% chance to freeze enemy who attacks user (2 turns). Frozen target cannot move but damage taken is reduced by 80%.
• Python Scales Raijinco
• S25 Musha Pipa

  Increase 4% critical rate and ignore 4% targets dodge.
• Black Koi
• Black Metal Hammer
• Love Missile

  Additional 60 HP damage upon all attack.
• Cancer Assegai

  Increases critical rate by 4%. Reduce damage taken by 3%.
• Wind Storm Raijinco
• Dual Blade of Fire

  Increase 3% damage made, recover self 2% HP each turn.
• Black Silver Electric Guitar
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• Angel Heart (Black)

  Reduce target 8% CP on every weapon attack.
• Scroll: Yinyang Seal
• Holiday Doll

  Expecting Santa in every year! Critical and dodge rate increase 3%.
• S81 Wheel of Glory

  Reduce damage taken by 200. Increase Combustion chance by 15%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Puppet: Spider
• Heian-kyo Shamisen
• Jingle Bell

  Reduce 2% damage taken. Recover 3% HP at the start of every turn.
• Childhood Memories

  Mothers Day 2011 Limited Edition
• Horror Scarecrow

  Increase attack damage by 5%. Reduce damage taken by 150.