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 :

• Christmas Pudding

  Recover 200 HP and 200 CP at the start of every turn but reduce agility by 10.
• Dark Blade

  Increase 2% critical rate and ignore 2% of targets dodge.
• Griffin Thunderball

  Increases critical rate by 3% and dodge rate by 3%.
• Smoothbore Musket

  Increase 10% damage.
  Reduce 3% damage taken.
• Tail of Kyubi

  Forged with chakra of the legendary tailed beast, Kyubi. 100% immune to Burn effect and increase 3% Combustion chance.
• Chakra Ancestor Flame

  Reduce damage taken by 175. Has 5% chance to convert damage taken to HP positively.
• Ancient Pipe

  5% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Twins Sakura

  Ignore 5% targets dodge.
• Huginn & Muninn

  Reduce 4% damage taken. Has 10% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Puppet: Hakuki (3 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Sakura Rain Battle Umbrella
• Red Koi
• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• S10 Frostguard's Bow

  A magical bow that has a very long range. Reduce target 8% CP on every weapon attack.
• Lucky Chess

  Has 5% chance to freeze enemy who attacks user (3 turn). Frozen target cannot move but damage taken is reduced by 80%. Each turn recover 100 HP and 100 CP.
• Puppet: Spider
• Black Silver Electric Guitar
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• Wood Top
• Scroll and Blade

  Has 11% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills. Increase critical rate by 5%. 8% chances of using Jutsu without CP.
• Extra Large Presents Bag

  A large present bag, but nobody knows what it contains.
• Light of Eternal

  Increase Max.HP 3%. Recover 3% SP at the start of every turn.
• Ramen Shop Lantern
• Apple Candy

  Increases damage by 5%. Has 3% chance to convert damage taken to HP positively.
• Writing Brush
• Blue Pattern Skis
• S11 Tensho Compass

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