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 :

• Sakura Rain Battle Umbrella
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Flame Soul Electric Guitar
• Blue Shell
• Yatai Lantern
• 2011 Fortune Lantern

  Ninja Saga 2nd Anniversary Carnival!
• Scroll: Double Head
• Trident
• Charming Aura (Red)

  2012 Valentines day limited aura, increase all damage 2%.
• S44 Earth Caller

  Increases attack damage by 4% and max HP by 5%.
• Scroll: Rikugo
• Ninja Postman Bag

  Increase healing power of scrolls by 50%.
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• S61 God Dragon Flag

  Increase critical rate by 6%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• S14 Ancient Yabusa Knife

  Increases attack damage 4% and ignore 3% of targets dodge.
• Golden Torch of Zeus

  Recover 150 HP every turn
• Toxic Spider Web

  10% chance to apply Restriction on enemies who attacks the user for 1 turn.
  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Chakra Message Stick
• Sakura Gold Jewellery

  Increases users agility by 1. Restores 3% of users max HP. Has 6% chance to convert damage taken to HP positively.
• Scroll: Terminated Rock
• Ferret Tail
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Force of Taowu

  Increases Max. HP by 4% and Max. CP by 4%.
• S23 Meschiken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)