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 :

• 4th Anniversary Back Item

  Ninja Saga 4th Anniversary edition! Recover 50 HP and 150 CP at the start of every turn.
• Champion Cup!

  Ultimate prize for Champions.
• Great Wooden Hammer (7 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Trident
• S32 Black Senbu

  Recover HP by 4% and reduces damage received by 3%.
• Seal Nightmare Wing

  Ignore 4% targets dodge.
• Zombie Hand

  Increase attack damage by 15%. But each turn reduce 200 HP and 300 CP.
• Drum: Ako
• Chakra Message Stick
• Tai Chi Gold Gourd

  Restores HP by 4%. Increase healing power of scrolls by 500%. Reduce target 3% CP on every weapon attack.
• War Flag: World Peace
• Ultimate Taiko

  Recover 120 HP at the start of every turn. Has 15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• Scroll: Flying Phoenix
• Holiday Doll

  Expecting Santa in every year! Critical and dodge rate increase 3%.
• Puppet: Spider
• Scroll: Guren
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• Water Symbol Guitar
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• MegaJingleBell

  A glorious Christmas artifact which can be used in battle. Ignores 5% of enemys dodge rate. Recovers 2% of users max HP every turn.
• S3 Fossil of Magatama

  Increase purify chance by 6%. Has 10% chance to convert damage taken to HP positively.
• Scroll: Double Head
• S12 Blood Evil Gourd

  Increase max. HP by 5%.
• Lucky Chess

  Has 5% chance to freeze enemy who attacks user (3 turn). Frozen target cannot move but damage taken is reduced by 80%. Each turn recover 100 HP and 100 CP.
• S38 Genrei Fan

  Increase max.CP by 50% but reduce max. HP by 20%.
• Thanksgiving Balloons

  Increase max. HP by 2%.