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 :

• Decorative Rope
• S15 Frozen Huge Sword

  Recupera 26% extra CP en cada recarga.
• S11 Wood Spirit's Bow

  Increase critical chance 13%.
• S15 Ancient Seitenken

  Recover CP after HP reduction. (Amount: 16% of HP reduction)
• Fairy Fishing Rod

  Each turn recover 3% HP and 100 CP
• Banana Back Item

  Banana Back Item
• Gold Wand

  Ignore 5% targets dodge.
• White Guitar
• S16 King Kong Ring

  Recover HP by 1% and reduces damage received by 4%.
• S74 Burning Wings

  Increases attack damage by 4% and Combustion chance by 25%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Spirit Flag

  An inspiring banner that boosts the holders morale. Increase critical chance and dodge rate by 3%.
• Jingle Bell

  Reduce 2% damage taken. Recover 3% HP at the start of every turn.
• Karasu Miya Falcon

  Increase dodge rate by 6%.
• 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.
• Love Ribbon

  Additional 40 HP damage upon all attack.
• S10 Ancient Kikyo Umbrella

  6% chance to convert damage taken into health. But reduce Max.CP by 2%.
• Horror Scarecrow

  Increase attack damage by 5%. Reduce damage taken by 150.
• Shoe of Bounty

  Increase dodge rate and critical rate by 4%.
• Ninja Bunny Doll

  Increase 2% damage and ignore 3% targets dodge.
• Blue Pattern Skis
• Tail Hunter Back Item

  Increase max. HP by 3%.
• S75 Trifecta Swords

  It gives off a strange feeling of vigor. Restores CP by 3%. Increases max CP by 7%.
• S12 Golden Bujin Ax

  Increase attack damage by 20% but increase damage taken by 12%.
• New Year Kadomatsu

  Recover 100 HP and 100 CP at the start of every turn.
• Light Cry Raijinco
• S52 Gold Dragon Scroll

  Reduce damage taken by 7%. Ignore targets dodge rate by 5%.
• Thorn hammer