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 :

• Fairy Fishing Rod

  Each turn recover 3% HP and 100 CP
• Water Symbol Guitar
• Scroll: Genbu
• 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.
• S17 Scorching Sun Scroll

  Has 30% chance to absorb 1% HP of enemy who attack you.
• Hanami Fan

  Ignore 4% targets dodge and increase max. HP by 2%.
• Umiyuki Painted Wood

  Reduce 24 HP damage taken.
• Harvest Treasure Bag

  Reduce damage taken by 140. Recover 5% extra CP when charge.
• S82 Amethyst Skull

  Increase purify chance by 5%. Recover 15% extra CP when charge.
• Nightmare Grudge

  Ignore 4% targets dodge.
• S9 Warring Empire Bulwark

  A strong and sturdy shield. Reduces damage taken by 35% but reduces the user's agility by 15.
• Bat Back Item

  Back item design with reference from Halloween - Bats. Increase 5% dodge rate and decrease damage 5% at the same time.
• Iron Tortoise Shell

  Reduce damage taken by 200.
• Python Scales Raijinco
• Tailed Beast Chakra Crystal

  Increase 3% damage.
  Reduce 3% damage taken.
  Recover 2% HP each turn start.
• S30 Sword Tattoo Ring

  Increase 4% critical rate and ignore 4% targets dodge.
• Prestige Purple Dragon

  Increase attack damage by 5%. Recover 100 HP at the start of every turn.
• Puppet: Hakuki (7 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Minotaurs Horn

  Recover 350 HP at the start of every turn. Has 15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Dark Secret Seal

  Increases critical chance by 4%. Has 12% chance to Restrict anyone who attacks the user.
• Curved Spear
• Tail of Jyubi

  Forged with chakra of the legendary tailed beast, Jyubi. Increase attack damage by 15% but reduce max. CP by 30%.
• Griffin Thunderball

  Increases critical rate by 3% and dodge rate by 3%.
• Axe Hammer suit

  Increases damage and accuracy by 6%. Recover 50 HP at the start of every turn.
• Rose Cloak

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• Christmas Wreath

  Increase agility by 1 and Max HP by 1%.
• S79 Blood Feather

  Has 15% chance to convert damage taken to HP positively.