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 :

• Twins Sakura

  Ignore 5% targets dodge.
• Blue Bird Wings
• Screw Pattern Skis
• S15 Frozen Large Sword

  Increase 7% purify chance.
• Dark World Hammer
• Santa Gift Bag

  Reduce damage taken by 30.
• S15 Seitenken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• S36 Wind Chakra Magatama

  Increase accuracy by 3% and dodge rate 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.
• Tail of Hachibi

  Forged with chakra of the legendary tailed beast, Hachibi. Increase critical chance by 15% but reduce max. HP by 20%.
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%. But reduce critical chance by 1%.
• Hanami Fan

  Ignore 4% targets dodge and increase max. HP by 2%.
• Hanagara Dama

  Increase max. CP by 6%
• Mimosa
• Ame no Kemagatama

  Increase 3% accuracy.
  Additional 30 HP damage upon all attack.
• Scroll: Kinjutsu I
• Emblem backpack (Yellow)

  Double mission XP reward in level 1 to level 20.
• Charming Aura (Red)

  2012 Valentines day limited aura, increase all damage 2%.
• S2 Demons erosion

  Recovers 4% of the users max HP every turn. Additional 100 damage on all attacks.
• First-Aid Kit

  100% of the purchase price will be donated to Japan earthquake relief.
• Great Wooden Hammer (3 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• S68 Supreme Faerie Wings

  Recover 20% extra CP when charge. Has 10% chance to convert damage taken to HP positively.
• S46 Holy Drum

  Reduce damage taken by 4%. Increase chance to restrict enemy for 1 turn by 20%. Targets with “Restriction” will not be able to use any skills.
• Yatai Lantern
• S37 Ring of Chakra Flame

  Increase attack damage by 7%.
• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• Four-Point Shuriken