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 :

• Blue Bird Wings
• S1 Helianthus

  Restores HP & CP by 5%. Increase purify chance by 5%.
• Togatsuki Paper Fan

  Increase max. CP by 10%.
• S52 Gold Dragon Scroll

  Reduce damage taken by 7%. Ignore targets dodge rate by 5%.
• S75 Trifecta Swords

  It gives off a strange feeling of vigor. Restores CP by 3%. Increases max CP by 7%.
• Red Koi
• Wood Top
• Fighting spirit Taiko
• Assault Kite

  Recover 100 HP and 80 CP at the start of every turn.
• Wine Gourd
• 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.
• Nutcracker

  Increases Max. HP by 4% and damage by 3%.
• Sakura Gold Jewellery

  Increases users agility by 1. Restores 3% of users max HP. Has 6% chance to convert damage taken to HP positively.
• Harvest Treasure Bag

  Reduce damage taken by 140. Recover 5% extra CP when charge.
• S3 Fossil of Magatama

  Increase purify chance by 6%. Has 10% chance to convert damage taken to HP positively.
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• Sanmoku Gourd

  Reduce damage taken by 65.
• Shadow Umbrella
• Angel Wings

  Increase 3% attack damage and ignore 3% targets dodge.
• Red Shuriken Skis
• Ice Cystal Raijinco
• Charming Aura (Red)

  2012 Valentines day limited aura, increase all damage 2%.
• S60 Amber Jewel Wings

  Increases attack damage by 10% and increase 5% Combustion chance.
• Bear of Affection

  Increase dodge rate by 3% and ignore target dodge by 3%.
• Golden Torch of Zeus

  Recover 150 HP every turn
• Scroll: Sun of Campaign
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.