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 :

• Fairy Fishing Rod

  Each turn recover 3% HP and 100 CP
• Wooden Hammer
• Christmas Bag

  Reduce damage taken by 10.
• Skull Twins

  7% chance to convert damage taken to HP positively and 20% chance to absorb 1% HP of enemy who attack you.
• Scroll: Fire and Earth
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• Ghost Spider

  Reduce 72 HP damage taken.
• Mousetrap

  15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• S2 Scroll Capsule

  Increase attack damage by 8%. Recover 7% cp after dealing damage.
• Radish Launcher

  It will fly you to the moon! (Easter 2011 Limited Edition)
• 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.
• Vertical Light

  Reduce 15 HP damage taken.
• S21 Rokulin Gunbai

  Ignore enemys dodge rate by 8%.
• Fairy Wings

  Fairy wings that owned by a fairy
• Great Wooden Hammer (3 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Scroll: Flying Phoenix
• Griffin Thunderball

  Increases critical rate by 3% and dodge rate by 3%.
• Scroll: Red Curse seal
• Mother's Hug

  Recover 100 HP and 2% HP at the start of every turn.
• Scroll: Genbu
• Mech of Battle Gear

  Increase critical chance 3% and critical damage 8%.
• Samurai Painted Wood

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

  Increase dodge rate by 6%.
• Cornucopia

  Increase healing power of scrolls by 100%. Has 6% chance to convert damage taken to HP positively.
• Decorative Rope
• Raijin Raijinco
• Paper Windmill

  Additional 20 HP damage upon all attack.