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 :

• Mother's Hug (II)

  Recover 150 HP and 3% HP at the start of every turn.
• Scroll: Double Head
• Vampire Cloak

  Increase healing power of scrolls by 100.
• Scroll: Rikugo
• S48 Titans Hammer

  The hammer used by titans to destroy castles in ancient times. Increases attack damage by 8% and accuracy by 5%.
• S80 Struggle Flag

  Recover HP by 2%. Recover 7% HP with every Charge.
• Ninja Postman Bag

  Increase healing power of scrolls by 50%.
• Christmas Deer

  Increase critical chance 2% and critical damage 6%.
• Water Symbol Guitar
• Death Wooden Coffin
• GM Goldfish

  GM Goldfish
• Iron Tortoise Shell

  Reduce damage taken by 200.
• Christmas Pudding

  Recover 200 HP and 200 CP at the start of every turn but reduce agility by 10.
• 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%
• Leopard Cat Tail
• Carrot Launcher

  Increase agility by 1. (Easter 2011 Limited Edition)
• Falcon
• GM back item
• Scroll: Flying Phoenix
• Triple Taiko

  Increases Max. HP by 4% and healing power of scrolls by 100%.
• Rose Cloak

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• S14 Yabusa Knife

  Increases 4% attack damage and ignore 4% of targets dodge.
• Hide Guitar
• Chakra Kanawa

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Scroll: Fire and Earth
• S74 Burning Wings

  Increases attack damage by 4% and Combustion chance by 25%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Holiday Doll

  Expecting Santa in every year! Critical and dodge rate increase 3%.