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 :

• Ancient Pipe

  5% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Cancer Assegai

  Increases critical rate by 4%. Reduce damage taken by 3%.
• Puppet: Hakuki

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Bat Back Item

  Back item design with reference from Halloween - Bats. Increase 5% dodge rate and decrease damage 5% at the same time.
• Wooden Repeating Crossbow
• 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.
• Apple Candy

  Increases damage by 5%. Has 3% chance to convert damage taken to HP positively.
• Cerberus's Flame

  80% chance to burn enemy who attack user - Reduce 3% HP for 2 turns.
• Black Koi
• Sakura Gold Jewellery

  Increases users agility by 1. Restores 3% of users max HP. Has 6% chance to convert damage taken to HP positively.
• S14 Profound Tentacles

  35% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Death Wooden Coffin
• S7 Gorgeous Butterfly

  Increase agility by 2. Recover 20% extra CP when charge.
• Decorative Rope
• Knot of Avenger

  20% chance to absorb 2% HP of enemy who attack you. 20% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• S54 Ebony Nunchaku

  Increases damage by 7%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Engagement Ring

  Additional 20 HP damage upon all attack.
• Four-Point Shuriken
• Red Ukiyo-e Kite

  4% chance to convert damage taken to HP positively and increase max. HP by 2%.
• Dual Blade of Fire

  Increase 3% damage made, recover self 2% HP each turn.
• Mini Evil Wing

  Exclusive Halloween item - the devils wings that frighten enemy, and hence reduce their damage done on you by 5%.
• S60 Amber Jewel Wings

  Increases attack damage by 10% and increase 5% Combustion chance.
• S12 Golden Bujin Jitte

  Increase dodge rate by 10%.
• Mousetrap

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

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