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 :

• Great Wooden Hammer (7 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Straw Hat

  Increase dodge rate by 3%.
• Soul Capturing Hammer

  Recover self 2% HP, reduce 3% damage taken.
• S18 Evil Spirit Wings

  Increase 10% critical rate.
• Super Rabbit Doll

  Increase damage by 9%.
• Sakura Lucky Bag

  Increase 3% damage, 4% chance to freeze attackers for 1 turn . Frozen target cannot move but damage taken is reduced by 80%
• Water Symbol Guitar
• Sengoku Flag

  Increases damage by 4%. Each turn recover 120 HP.
• Cornucopia

  Increase healing power of scrolls by 100%. Has 6% chance to convert damage taken to HP positively.
• S27 Golden Gourd

  Recover 5% HP with every Charge.
• S52 Gold Dragon Scroll

  Reduce damage taken by 7%. Ignore targets dodge rate by 5%.
• 2011 Fortune Lantern

  Ninja Saga 2nd Anniversary Carnival!
• Stuff Bunny

  Increase Max. HP by 2% and Max. CP by 4%.
• S60 Amber Jewel Wings

  Increases attack damage by 10% and increase 5% Combustion chance.
• Sealed Wood

  A back item which lost the original effectiveness.
• Red Shuriken Skis
• Mirror of Shamisen
• Ninja Bunny Doll

  Increase 2% damage and ignore 3% targets dodge.
• Venom Ghost

  Has 5% chance to convert damage taken to HP positively. Recover HP by 100 every turn.
• S45 Oblivion Ward

  Increases Max. HP by 3% and Max. CP by 6%.
• Smoothbore Musket

  Increase 10% damage.
  Reduce 3% damage taken.
• Skull Twins

  7% chance to convert damage taken to HP positively and 20% chance to absorb 1% HP of enemy who attack you.
• Spartan Shield

  Restore 100 HP every turn. Reduce damage taken by 5%.
• S38 Genrei Fan

  Increase max.CP by 50% but reduce max. HP by 20%.
• S54 Ebony Nunchaku

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

  Increases dodge rate by 4%. Additional 80 HP damage on all attacks.
• Chakra Ancestor Flame

  Reduce damage taken by 175. Has 5% chance to convert damage taken to HP positively.