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 :

• Ramen Shop Lantern
• 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.
• Water Symbol Guitar
• S70 Magical Cobweb

  Restores CP by 3%. 30% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Mercy Of Libra

  Recover 2% HP at the start of every turn. And recover 3% HP with every Charge.
• Wind Storm Raijinco
• Carnival Taiko

  Play the Taiko in Ninja Saga Anniversary Carnival! Recover 5 HP and CP at the start of every turn.
• S13 Slaughter Double Sickle

  Recover HP by 1%. 20% chances of using Jutsu without CP.
• Aboriginal Hunting Set

  Increase accuracy by 5% and Combustion chance 6%.
• S31 Yabusa Dual Head Spear

  Increase 4% damage and 4% critical rate.
• Scroll: Genbu
• Straw Hat

  Increase dodge rate by 3%.
• Peom Fan

  Reduce 46 HP damage taken.
• Native Horn

  Increase max. CP by 3%, Recover 1% HP with every Charge.
• S12 Golden Bujin Jitte

  Increase dodge rate by 10%.
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• Beast Mace
• Smoothbore Musket

  Increase 10% damage.
  Reduce 3% damage taken.
• Native Drum

  5% chance to convert damage taken to HP positively.
• Christmas Trumpet

  Ignore enemys dodge rate by 4% and recover 3% CP with every charge.
• Red Shuriken Skis
• Folding Fan: Shino
• S16 King Kong Ring

  Recover HP by 1% and reduces damage received by 4%.
• Horror Scarecrow

  Increase attack damage by 5%. Reduce damage taken by 150.
• Firefox Tail
• Christmas Chimney

  4% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Cancer Assegai

  Increases critical rate by 4%. Reduce damage taken by 3%.