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 :

• Cheerful Snowman

  Increase Max. CP by 20%. Recover 2% HP at the start of every turn. but reduce max. HP by 12%.
• Raccoon Tail
• Flag of the Burning Legion

  Reduce 3% damage taken and 12% chance to absorb 2% HP of enemy who attack you.
• Carnival Taiko

  Play the Taiko in Ninja Saga Anniversary Carnival! Recover 5 HP and CP at the start of every turn.
• S32 Black Senbu

  Recover HP by 4% and reduces damage received by 3%.
• Sagittarius Hunting Set

  Increases dodge rate by 4%. Additional 80 HP damage on all attacks.
• Musashi Twin Blades
• Christmas Chimney

  4% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.
• S53 Frostfire Soul

  Increases combustion chance by 15%. Has a 10% chance to freeze enemies who attacks the user for 1 turn. Frozen targets cannot act but takes 80% reduced damage.
• War Flag: World Peace
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• Mini Octopus
• Champion Cup!

  Ultimate prize for Champions.
• Genin backpack (Blue)

  Double mission XP reward in level 11 to level 20.
• Banana Back Item

  Banana Back Item
• Holy Wings

  Increase accuracy by 4% and dodge rate by 3%.
• Red Shell
• Zombie Hand

  Increase attack damage by 15%. But each turn reduce 200 HP and 300 CP.
• Wood Top
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• Umiyuki Painted Wood

  Reduce 24 HP damage taken.
• Orange Koi
• Ukon Three Blades
• Ninjas Stocking

  Increase 5% Combustion chance and attack damage by 3%.
• Leos Recurve Bow

  Increases damage by 4% and dodge rate by 1%.
• Giant Copper Coins

  Increase Mission gold reward by 30%.(Mission Only)
• Taoist Spirit Stone

  Increases Max. HP by 3% and Max. CP by 5%. Increase purify chance by 1%.