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 :

• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• S70 Magical Cobweb

  Restores CP by 3%. 30% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Ultimate Taiko

  Recover 120 HP at the start of every turn. Has 15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Christmas Deer

  Increase critical chance 2% and critical damage 6%.
• Scroll: Posion Attack
• Ritual Taiko
• Ninja Bag

  Increase healing power of scrolls by 20%.
• Evil Way Lute

  Has a 50% chance to recover 5% of maximum HP. Has 10% chance to absorb 3% HP
• S15 Frozen Huge Sword

  Recupera 26% extra CP en cada recarga.
• Justice and Freedom

  Flag of the United States of America which symbolizes freedom and liberty. Recover 3% HP with every charge. Increases critical rate by 3%. Reduces damage taken by 50.
• Kettle
• Ishiyama Lantern

  Reduce damage taken by 49.
• Big Cask

  Increase max.HP by 15% but reduce max. CP by 5%.
• S29 Yanki Protective Magatama

  Increase accuracy by 8%
• Mousetrap

  15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Virgos Eternal Wings

  Increases agility by 1. Increases users attack damage by 3%.
• Ninja Bunny Doll

  Increase 2% damage and ignore 3% targets dodge.
• Iron Tortoise Shell

  Reduce damage taken by 200.
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• Minotaurs Horn

  Recover 350 HP at the start of every turn. Has 15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Cupids Flying Envelop

  A message to a far away lover.
  Reduces damage taken by 60.
  Increases max HP by 5%.
• Golden-bound Cudgel
• Dark Cry Raijinco
• S37 Ring of Chakra Flame

  Increase attack damage by 7%.
• Scroll: Sun of Campaign
• Turkey Balloon

  Reduce damage taken by 7%. Recover 10% extra CP when charge.
• Choco Tama

  Increase accuracy by 5% and increase healing power of scrolls by 25%.