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 :

• Scroll: Messenger (7 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• S23 Meschiken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Holy Wings

  Increase accuracy by 4% and dodge rate by 3%.
• Skull Twins

  7% chance to convert damage taken to HP positively and 20% chance to absorb 1% HP of enemy who attack you.
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• Peom Fan

  Reduce 46 HP damage taken.
• Champion Cup!

  Ultimate prize for Champions.
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• Scroll: Tenku
• Ninja Postman Bag

  Increase healing power of scrolls by 50%.
• S72 Hero Twin Axe

  Increase 12% Combustion Chance and recover 3% HP at the start of every turn. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Scroll: Double Head
• Musashi Twin Blades
• Scroll: Taiin
• Griffin Thunderball

  Increases critical rate by 3% and dodge rate by 3%.
• War Flag: Furinkazan
• Curved Spear
• Purple Dragon umbrella
• Evil Claw Hammer

  Reduce 7 HP damage taken.
• GM Phone

  GM Phone
• White Guitar
• Toxic Mushroom

  Increases damage by 10% but the user takes 200 HP damage every turn.
• Nightmare Grudge

  Ignore 4% targets dodge.
• Banana Back Item

  Banana Back Item
• Chakra Kanawa

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Brilliant Stock Pot

  Increase max. HP by 8% and purify chance by 2% but reduce max. CP by 8%.