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 :

• Spartan Shield

  Restore 100 HP every turn. Reduce damage taken by 5%.
• Ishiyama Lantern

  Reduce damage taken by 49.
• Musashi Twin Blades
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• S2 Demons erosion

  Recovers 4% of the users max HP every turn. Additional 100 damage on all attacks.
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• Dragon Crucifix Spear
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Dark Evil Sickle

  Exclusive Halloween item - the devils sickle that has 10% chance to absorb 1% HP of enemy who attack you.
• S65 Transcendent Flame Wings

  Remnants of a powerful fire spirit. Increases attack damage by 7% and increase 20% Combustion chance. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Cheerful Snowman

  Increase Max. CP by 20%. Recover 2% HP at the start of every turn. but reduce max. HP by 12%.
• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• Blue Wolf Tail
• Carp Flag
• Evil Claw Hammer

  Reduce 7 HP damage taken.
• Childhood Memories

  Mothers Day 2011 Limited Edition
• Dark Plate Twin Blades
• Sakura Fan

  Recover 20 HP and 150 CP at the start of every turn.
• Flag of the Burning Legion

  Reduce 3% damage taken and 12% chance to absorb 2% HP of enemy who attack you.
• Apricot Pipa
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• Python Scales Raijinco
• Water Symbol Guitar
• Banana Back Item

  Banana Back Item
• Rose Cloak

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• 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.
• Harvest Treasure Bag

  Reduce damage taken by 140. Recover 5% extra CP when charge.