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 :

• Super Rabbit Doll

  Increase damage by 9%.
• Flame Soul Electric Guitar
• Falcon
• Shinobi Curse Battle Umbrella
• Giant Copper Coins

  Increase Mission gold reward by 30%.(Mission Only)
• Fairy Wings

  Fairy wings that owned by a fairy
• Heart Aura

  Hidden feelings emerges! Recovers 2% of the user's max HP and 100 HP every turn.
• Leos Recurve Bow

  Increases damage by 4% and dodge rate by 1%.
• Writing Brush
• S3 Energetical Can

  Increase attack damage by 10% and Combustion chance by 18%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Four-Point Shuriken
• S5 Possessed Koto

  Increase purify chance by 7%. Reduce jutsu CP consumption for 10%. Has 15% Chance to stun target when attack with weapon for 1 turn.
• Great Wooden Hammer (3 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• FIFA Whistle

  Recover 100 CP at the start of every turn and reduces damage taken by 80.
• Puppet: Hakuki (3 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Champion Cup!

  Ultimate prize for Champions.
• Samurai Painted Wood

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

  Increase max. HP by 8% and purify chance by 2% but reduce max. CP by 8%.
• Magical Wreath

  Recover HP by 2% and reduce 4% damage taken.
• S54 Ebony Nunchaku

  Increases damage by 7%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Hanami Fan

  Ignore 4% targets dodge and increase max. HP by 2%.
• S60 Amber Jewel Wings

  Increases attack damage by 10% and increase 5% Combustion chance.
• Blue Bird Wings
• Sakura Lantern

  Increase Combustion chance by 10%.(Minimum requirement of 1 Attribute Point in Fire to activate combustion effect). Has 10% chance to absorb 2% HP of enemy who attack you.
• Stuff Bunny

  Increase Max. HP by 2% and Max. CP by 4%.
• S12 Golden Bujin Ax

  Increase attack damage by 20% but increase damage taken by 12%.
• Orange Kikyo Skis