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 :

• Carrot Launcher

  Increase agility by 1. (Easter 2011 Limited Edition)
• S1 Helianthus

  Restores HP & CP by 5%. Increase purify chance by 5%.
• Ice Cystal Raijinco
• Ninja Bag

  Increase healing power of scrolls by 20%.
• Fairy Wings

  Fairy wings that owned by a fairy
• Steel Frame Tail
• Aries Taiko

  A magical taiko used in celebrations during the Aries zodiac months. Recovers 50 HP every turn and reduces damage taken by 25.
• Puppet: Hakuki (7 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• S16 King Kong Ring

  Recover HP by 1% and reduces damage received by 4%.
• Moai Flagon

  Increase Max. HP by 3%. Reduce damage taken by 100.
• Thanksgiving Candle

  Has 15% chance to absorb 2% HP of enemy who attack you. Increase 7% Combustion chance.
• Red Shuriken Skis
• Spinning Wheel

  Recover user's max HP by 1% each turn. Increases user's max CP by 2%. Converts 10% of damage taken into CP.
• Jaws

  Ignore 4% targets dodge.
• Red Koi
• S15 Seitenken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• Blue Wolf Tail
• Swire Raijinco
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• S11 Wood Spirit's Shield

  Increase max. HP by 9% and 20% chance to absorb 3% HP of enemy who attack you.
• White Guitar
• Christmas Deer

  Increase critical chance 2% and critical damage 6%.
• Christmas Bag

  Reduce damage taken by 10.
• Shoe of Bounty

  Increase dodge rate and critical rate by 4%.
• Roasted Turkey

  Restore 20 HP every turn.
• Shinobi Curse Battle Umbrella