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 :

• Scroll: Grassland
• Rose Cloak

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

  5% chance to convert damage taken to HP positively.
• Wind Storm Raijinco
• Mini Scroll
• S18 Kamimachi Lantern

  Increase 4% critical rate and recover HP by 1%.
• Bat Back Item

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

  Increase 3% attack damage and ignore 3% targets dodge.
• Decorative Rope
• Holiday Doll

  Expecting Santa in every year! Critical and dodge rate increase 3%.
• 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.
• S13 Slaughter Double Sickle

  Recover HP by 1%. 20% chances of using Jutsu without CP.
• Santa Gift Bag

  Reduce damage taken by 30.
• Assault Kite

  Recover 100 HP and 80 CP at the start of every turn.
• Puppet: Hakuki (3 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• S49 Serpent Dragon Chakram

  An exceptional weapon crafted with serpent and dragon remains. Increases agility by 1 and accuracy by 7%.
• S56 Curse Brush

  A legendary Ink Brush that has the ability to materialize drawings. Increase critical rate by 5% and accuracy by 6%.
• Ferret Tail
• Angel Heart (White)

  16% chance to absorb 2% HP of enemy who attack you.
• Star Dawn Harp

  Increases users agility by 1. Recover CP after HP reduction. (Amount: 10% of HP reduction) Recover HP by 2% when being put on a debuff.
• Dark Plate Twin Blades
• Water Symbol Guitar
• Tai Chi Gold Gourd

  Restores HP by 4%. Increase healing power of scrolls by 500%. Reduce target 3% CP on every weapon attack.
• Giant Copper Coins

  Increase Mission gold reward by 30%.(Mission Only)
• White Metal Hammer
• Sakura Straw Hat

  Recovers 2% of users max HP every turn.
• Blizzard

  Increases users agility by 1. Has 7% chance to convert damage taken into HP.