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 :

• S3 Fossil of Magatama

  Increase purify chance by 6%. Has 10% chance to convert damage taken to HP positively.
• Mother's Hug (II)

  Recover 150 HP and 3% HP at the start of every turn.
• Stuff Bunny

  Increase Max. HP by 2% and Max. CP by 4%.
• Scroll: Tenku
• S75 Trifecta Swords

  It gives off a strange feeling of vigor. Restores CP by 3%. Increases max CP by 7%.
• Holy Wings

  Increase accuracy by 4% and dodge rate by 3%.
• Mirror of Thousand Hands
• 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)
• Master Scroll

  Restores HP & CP by 3%.
• Black Silver Electric Guitar
• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• Gemini Halo Glyph

  Increases damage by 4%. Reduce damage taken by 65.
• Tail of Capricorn

  Increases dodge rate by 4%. Recovers 3% HP with every charge.
• Carp Flag
• S1 Helianthus

  Restores HP & CP by 5%. Increase purify chance by 5%.
• Sweet Treat

  Increase critical chance by 2% and dodge rate by 3%.
• Star Dawn Harp

  Increases users agility by 1. Recover CP after HP reduction. (Amount: 10% of HP reduction) Recover HP by 2% when being put on a debuff.
• Nightmare Grudge

  Ignore 4% targets dodge.
• Cancer Assegai

  Increases critical rate by 4%. Reduce damage taken by 3%.
• Soul Capturing Hammer

  Recover self 2% HP, reduce 3% damage taken.
• Civet Cat Tail
• S33 Book of Fate

  Increase Max. HP & CP by 4%
• Griffin Thunderball

  Increases critical rate by 3% and dodge rate by 3%.
• Assault Kite

  Recover 100 HP and 80 CP at the start of every turn.
• Matsuyama Fan

  Ignore enemys dodge rate by 6%.
• Evil Claw Hammer

  Reduce 7 HP damage taken.
• Red Ukiyo-e Kite

  4% chance to convert damage taken to HP positively and increase max. HP by 2%.