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 :

• Apricot Pipa
• Shinobi Curse Battle Umbrella
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• S76 Buckler and Sword

  Increase max.HP by 12% but reduce max. CP by 2%.
• Scroll: Grassland
• Black Metal Hammer
• Carrot Time Bomb

  Has 8% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%. Has 5% chance to convert damage taken to HP positively.
• Scroll: Flying Phoenix
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• S12 Blood Evil Gourd

  Increase max. HP by 5%.
• Umiyuki Painted Wood

  Reduce 24 HP damage taken.
• Mini Scroll
• S41 Dragon Gunnery

  Increase 25% Combustion chance, Ignore enemys dodge rate by 5%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Hanami Fan

  Ignore 4% targets dodge and increase max. HP by 2%.
• S12 Golden Bujin Jitte

  Increase dodge rate by 10%.
• Black Koi
• Love of coffee

  Prepared with love and empathy. Recovers 100 HP every turn. Increases attack damage by 4%.
• Big Cheese

  Recover CP after HP reduction. (Amount: 10% of HP reduction)
• S62 Black Steel Swords

  Restores 5% of users max HP.
• Beast Mace
• Extra Large Presents Bag

  A large present bag, but nobody knows what it contains.
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Dark World Hammer
• Drum of Euphoria

  Recover 3% HP at the start of every turn, and recover 3% HP with every Charge.
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• Puppet: Spider
• Scroll: Taiin