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 :

• Santa Gift Bag

  Reduce damage taken by 30.
• Scroll: Rikugo
• Super Rabbit Doll

  Increase damage by 9%.
• Grave of the Undying

  Increase purify chance by 8%, but decrease agility by 15.
• S29 Yanki Protective Magatama

  Increase accuracy by 8%
• Carrot Time Bomb

  Has 8% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%. Has 5% chance to convert damage taken to HP positively.
• S83 Four Wings

  Increase dodge rate by 8%.
• Celestial Wood Raijinco
• Brilliant Stock Pot

  Increase max. HP by 8% and purify chance by 2% but reduce max. CP by 8%.
• Soul of Egg Hunting Beast

  2012 Egg Hunting Event
• Hanagara Hagoita

  Increase max. HP by 3%.
• Father's Heart

  Reduce damage taken by 6%.
• Chakra Message Stick
• S30 Sword Tattoo Ring

  Increase 4% critical rate and ignore 4% targets dodge.
• Peom Fan

  Reduce 46 HP damage taken.
• Trident
• S47 Kami's Blessing

  Increase critical chance 6% and critical damage 10%.
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Spartan Shield

  Restore 100 HP every turn. Reduce damage taken by 5%.
• Dark Plate Twin Blades
• Nutcracker

  Increases Max. HP by 4% and damage by 3%.
• S15 Frozen Large Sword

  Increase 7% purify chance.
• Aboriginal Hunting Set

  Increase accuracy by 5% and Combustion chance 6%.
• Scroll: Messenger (3 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• Love Ribbon

  Additional 40 HP damage upon all attack.
• Colorful Snowflake

  Increase agility by 1. Has 15% chance to freeze enemy who attacks user (2 turns). Frozen target cannot move but damage taken is reduced by 80%.
• Decorative Rope