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 :

• Evil Claw Hammer

  Reduce 7 HP damage taken.
• Shoe of Bounty

  Increase dodge rate and critical rate by 4%.
• S1 Helianthus

  Restores HP & CP by 5%. Increase purify chance by 5%.
• Purple Mixing Yellow Umbrella
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%.
• Sealing the soul barrel
• Sakura Straw Hat

  Recovers 2% of users max HP every turn.
• Karasu Miya Falcon

  Increase dodge rate by 6%.
• Scroll: Grassland
• Hanami Lantern

  2011 Hanami Festival - Shine! Reduce damage taken by 15.
• GM Goldfish

  GM Goldfish
• Mother's Hug

  Recover 100 HP and 2% HP at the start of every turn.
• Gruidae Wing

  Each turn recover 80 CP. Recover CP after HP reduction. (Amount: 8% of HP reduction)
• Force of Taotie

  Reduce damage taken by 7%.
• Pirate Skull Flag

  Increase 6% purify chance. Reduce damage taken by 5%.
• Ame no Kemagatama

  Increase 3% accuracy.
  Additional 30 HP damage upon all attack.
• Light of Eternal

  Increase Max.HP 3%. Recover 3% SP at the start of every turn.
• 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.
• Scroll: Rikugo
• S18 Evil Spirit Wings

  Increase 10% critical rate.
• Musashi Twin Blades
• Big Cheese

  Recover CP after HP reduction. (Amount: 10% of HP reduction)
• Cancer Assegai

  Increases critical rate by 4%. Reduce damage taken by 3%.
• S25 Musha Pipa

  Increase 4% critical rate and ignore 4% targets dodge.
• Senior Kari Bagpack

  Reduce 3% damage taken.
• Radish Launcher

  It will fly you to the moon! (Easter 2011 Limited Edition)
• Roasted Turkey

  Restore 20 HP every turn.