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 :

• S29 Yanki Protective Magatama

  Increase accuracy by 8%
• Scroll: Taiin
• Charming Aura (Black)

  2012 Valentines day limited aura, increase critical chance 2%.
• Water Energy Skis
• Christmas Bag

  Reduce damage taken by 10.
• Black Koi
• S77 Curse Dragon

  Increases attack damage by 9% and critical damage 10%.
• Skull Twins

  7% chance to convert damage taken to HP positively and 20% chance to absorb 1% HP of enemy who attack you.
• 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)
• Light Cry Raijinco
• S12 Ancient Blood Evil Gourd

  Increase max. HP by 5%. But reduce Max.CP by 1%.
• Blue Cloud Umbrella

  Ignore 6% targets dodge.
• S15 Frozen Huge Sword

  Recupera 26% extra CP en cada recarga.
• Wooden Repeating Crossbow
• Scroll and Blade

  Has 11% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills. Increase critical rate by 5%. 8% chances of using Jutsu without CP.
• Super Rabbit Doll

  Increase damage by 9%.
• Cursed Devil

  Increase attack damage by 15%. But reduce max. HP and max. CP by 10%
• Scroll: Kinjutsu I
• Gunbai: World Peace
• Charmed Heart

  Theres no escaping love. Increases accuracy by 5%. Adds 40 damage in all of your attacks.
• S5 Umbrella of Spiritual Pulse

  Recover CP after HP reduction. (Amount: 10% of HP reduction) Recover 5% CP every turn if current CP is less than 50%. Has 8% chance to reduce skill cooldown by 1 turn at the start of each turn. (Not effective on talent skills)
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.
• Chakra Kanawa

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Merlins Magical book

  Increases attack damage 5%
• Love Missile

  Additional 60 HP damage upon all attack.
• Taurus Wand

  A necromantic wand with a figurehead of a bull. Used by necromancers in ancient times to amplify their power. Recover 100 HP at the start of every turn. Has a 12% chance to absorb 3% HP of enemies who attack you.
• Ninja Postman Bag

  Increase healing power of scrolls by 50%.