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 :

• Drum of Euphoria

  Recover 3% HP at the start of every turn, and recover 3% HP with every Charge.
• Frost Soul Electric Guitar
• S21 Rokulin Gunbai

  Ignore enemys dodge rate by 8%.
• Great Wooden Hammer (3 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Sakura Fan

  Recover 20 HP and 150 CP at the start of every turn.
• S38 Genrei Fan

  Increase max.CP by 50% but reduce max. HP by 20%.
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• S49 Serpent Dragon Chakram

  An exceptional weapon crafted with serpent and dragon remains. Increases agility by 1 and accuracy by 7%.
• S13 Ancient Kishu Twin Blades

  Increase accuracy by 6%
• S12 Golden Bujin Jitte

  Increase dodge rate by 10%.
• Cancer Assegai

  Increases critical rate by 4%. Reduce damage taken by 3%.
• Golden-bound Cudgel
• Mini Octopus
• S62 Black Steel Swords

  Restores 5% of users max HP.
• S2 Scroll Capsule

  Increase attack damage by 8%. Recover 7% cp after dealing damage.
• 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.
• Hidden Green Umbrella
• Steel Frame Tail
• S28 Orochi Statue

  Increase attack damage by 4%, and recover HP by 1%.
• Musashi Twin Blades
• S39 Spike Hammer

  Increase accuracy by 10% but reduce max. HP by 10%.
• War Flag: Furinkazan
• Tail of Jyubi

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

  Restores 3% of users max HP.Has 4% chance to convert damage taken to HP positively.
• Vampire Cloak

  Increase healing power of scrolls by 100.
• Twins Sakura

  Ignore 5% targets dodge.
• Hanami Lantern

  2011 Hanami Festival - Shine! Reduce damage taken by 15.