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 :

• S10 Kikyo Umbrella

  6% chance to convert damage taken to HP positively.
• Dark Blade

  Increase 2% critical rate and ignore 2% of targets dodge.
• Peom Fan

  Reduce 46 HP damage taken.
• Big Cheese

  Recover CP after HP reduction. (Amount: 10% of HP reduction)
• Poor Bag

  7% chance to convert damage taken to HP positively. Reduce damage taken by 5%.
• Ninja Bunny Doll

  Increase 2% damage and ignore 3% targets dodge.
• S20 Empire Battle Gear

  6% chance to convert damage taken to HP positively.
• Childhood Memories

  Mothers Day 2011 Limited Edition
• Cornucopia

  Increase healing power of scrolls by 100%. Has 6% chance to convert damage taken to HP positively.
• Force of Taowu

  Increases Max. HP by 4% and Max. CP by 4%.
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• Fairy Fishing Rod

  Each turn recover 3% HP and 100 CP
• Dark Evil Sickle

  Exclusive Halloween item - the devils sickle that has 10% chance to absorb 1% HP of enemy who attack you.
• S61 God Dragon Flag

  Increase critical rate by 6%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Sakura Lucky Cat

  Ignore enemys dodge rate by 4% and increase 3% dodge rate.
• Scroll: Genbu
• Scroll: Double Head
• S51 Enchanted Winged Carapace

  Increases accuracy by 3%. Recover 4% HP at the start of every turn.
• Mother's Hug

  Recover 100 HP and 2% HP at the start of every turn.
• Yawata Magatama

  Increase 3% accuracy.
  Additional 20 HP damage upon all attack.
• Minotaurs Horn

  Recover 350 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.
• S19 Magatama Soul Barrel

  Increase 4% critical rate and ignore 4% targets dodge.
• S2 Scroll Capsule

  Increase attack damage by 8%. Recover 7% cp after dealing damage.
• Santa Gift Bag

  Reduce damage taken by 30.
• Chakra Message Stick
• Taurus Wand

  A necromantic wand with a figurehead of a bull. Used by necromancers in ancient times to amplify their power. Recover 100 HP at the start of every turn. Has a 12% chance to absorb 3% HP of enemies who attack you.