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 :

• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• Grave of the Undying

  Increase purify chance by 8%, but decrease agility by 15.
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Great Wooden Hammer

  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.
• S80 Struggle Flag

  Recover HP by 2%. Recover 7% HP with every Charge.
• S8 Underworld Bulwark

  A phantom shield with demon soul. Reduce damage taken by 10%.
• Force of Taotie

  Reduce damage taken by 7%.
• Mimosa
• Dark Cry Raijinco
• S72 Hero Twin Axe

  Increase 12% Combustion Chance and recover 3% HP at the start of every turn. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• S36 Wind Chakra Magatama

  Increase accuracy by 3% and dodge rate by 3%.
• Raijin Raijinco
• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• S28 Orochi Statue

  Increase attack damage by 4%, and recover HP by 1%.
• Decorative Rope
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• Ancient Pipe

  5% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Ishiyama Lantern

  Reduce damage taken by 49.
• Vampire Cloak

  Increase healing power of scrolls by 100.
• Tail Hunter Back Item

  Increase max. HP by 3%.
• Mini Scroll
• Ukon Three Blades
• Black Silver Electric Guitar
• Ink Cloud

  Additional 40 HP damage upon all attack.