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 :

• S13 Slaughter Double Sickle

  Recover HP by 1%. 20% chances of using Jutsu without CP.
• Zombie Hand

  Increase attack damage by 15%. But each turn reduce 200 HP and 300 CP.
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• Christmas Pudding

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

  Ignore 4% targets dodge.
• S58 Scroll of Shadows

  Increases damage by 6% and dodge rate by 5%.
• Tai Chi Gold Gourd

  Restores HP by 4%. Increase healing power of scrolls by 500%. Reduce target 3% CP on every weapon attack.
• Love Missile

  Additional 60 HP damage upon all attack.
• 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.
• S33 Book of Fate

  Increase Max. HP & CP by 4%
• Holy Wings

  Increase accuracy by 4% and dodge rate by 3%.
• Scroll: Terminated Rock
• Turkey Balloon

  Reduce damage taken by 7%. Recover 10% extra CP when charge.
• Soul of Egg Hunting Beast

  2012 Egg Hunting Event
• Clear Cross

  Increase 3% purify chance. Each turn recover 150 HP and 150 CP.
• Big Cask

  Increase max.HP by 15% but reduce max. CP by 5%.
• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• Horror Scarecrow

  Increase attack damage by 5%. Reduce damage taken by 150.
• Cancer Assegai

  Increases critical rate by 4%. Reduce damage taken by 3%.
• Nutcracker

  Increases Max. HP by 4% and damage by 3%.
• Shoe of Bounty

  Increase dodge rate and critical rate by 4%.
• Bell of Beast

  Recover HP by 3%. 15% chance to absorb 3% HP of enemy who attack you.
• S77 Curse Dragon

  Increases attack damage by 9% and critical damage 10%.
• Puppet: Hakuki (3 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• S82 Amethyst Skull

  Increase purify chance by 5%. Recover 15% extra CP when charge.
• Shishimai Back

  Restores 3% of users max HP.Has 4% chance to convert damage taken to HP positively.