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 Wolf Tail
• S28 Orochi Statue

  Increase attack damage by 4%, and recover HP by 1%.
• Blue Bird Wings
• 4th Anniversary Back Item

  Ninja Saga 4th Anniversary edition! Recover 50 HP and 150 CP at the start of every turn.
• Carp Flag
• Blue Shell
• Hanami Folding Fan

  2011 Hanami Festival - Usagi! Increase dodge rate and critical rate by 3%.
• Big Cheese

  Recover CP after HP reduction. (Amount: 10% of HP reduction)
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• Gruidae Wing

  Each turn recover 80 CP. Recover CP after HP reduction. (Amount: 8% of HP reduction)
• Mother's Hug

  Recover 100 HP and 2% HP at the start of every turn.
• S15 Ancient Seitenken

  Recover CP after HP reduction. (Amount: 16% of HP reduction)
• Sengoku Flag

  Increases damage by 4%. Each turn recover 120 HP.
• Virgos Eternal Wings

  Increases agility by 1. Increases users attack damage by 3%.
• S11 Wood Spirit's Shield

  Increase max. HP by 9% and 20% chance to absorb 3% HP of enemy who attack you.
• Clear Cross

  Increase 3% purify chance. Each turn recover 150 HP and 150 CP.
• Pirate Skull Flag

  Increase 6% purify chance. Reduce damage taken by 5%.
• Drum: Ako
• S29 Yanki Protective Magatama

  Increase accuracy by 8%
• Water Symbol Guitar
• Red Koi
• Love Ribbon

  Additional 40 HP damage upon all attack.
• S68 Supreme Faerie Wings

  Recover 20% extra CP when charge. Has 10% chance to convert damage taken to HP positively.
• S18 Evil Spirit Shield

  Reduce 14% damage taken.
• Rose Cloak

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• Mirror of Shamisen
• Ancient Shinobi War Decorated

  Additional 60 HP damage upon all attack.