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 :

• Purple Mixing Yellow Umbrella
• Clouds And Mist Raijinco
• Dual Blade of Fire

  Increase 3% damage made, recover self 2% HP each turn.
• Chakra Ancestor Flame

  Reduce damage taken by 175. Has 5% chance to convert damage taken to HP positively.
• Wooden Hammer
• Blue Pattern Skis
• Chakra Message Stick
• Raijin Raijinco
• S15 Seitenken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Gunbai: World Peace
• S65 Transcendent Flame Wings

  Remnants of a powerful fire spirit. Increases attack damage by 7% and increase 20% Combustion chance. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Virgos Eternal Wings

  Increases agility by 1. Increases users attack damage by 3%.
• Golden-bound Cudgel
• Paper Windmill

  Additional 20 HP damage upon all attack.
• S39 Spike Hammer

  Increase accuracy by 10% but reduce max. HP by 10%.
• Prestige Purple Dragon

  Increase attack damage by 5%. Recover 100 HP at the start of every turn.
• Ink Cloud

  Additional 40 HP damage upon all attack.
• Charming Aura (Pink)

  2012 Valentines day limited aura, reduce damage 2%.
• Decorate Battle Umbrella
• Triple Taiko

  Increases Max. HP by 4% and healing power of scrolls by 100%.
• Basic Jounin Battle Gear
• S7 Gorgeous Butterfly

  Increase agility by 2. Recover 20% extra CP when charge.
• S14 Profound Pincers

  20% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Love Missile

  Additional 60 HP damage upon all attack.
• Heian-kyo Shamisen
• Businessman Luggage
• S67 Omni Cloud

  Increase accuracy by 6% and dodge rate by 5%.