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 :

• Vertical Light

  Reduce 15 HP damage taken.
• Great Wooden Hammer (7 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• S83 Four Wings

  Increase dodge rate by 8%.
• Mousetrap

  15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• S81 Wheel of Glory

  Reduce damage taken by 200. Increase Combustion chance by 15%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.
• Scroll: Rikugo
• White Metal Hammer
• Horror Scarecrow

  Increase attack damage by 5%. Reduce damage taken by 150.
• Magical Wreath

  Recover HP by 2% and reduce 4% damage taken.
• Egg Hunter Basket

  Increase 6% accuracy. (Easter 2011 Limited Edition)
• S17 Scorching Sun Lantern

  Recover 10% cp after dealing damage.
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%. But reduce critical chance by 1%.
• Trident
• Puppet: Hakuki (3 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Pirate Skull Flag

  Increase 6% purify chance. Reduce damage taken by 5%.
• Grand Light Gourd

  Increase 3% damage
• Angel Heart (White)

  16% chance to absorb 2% HP of enemy who attack you.
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• S38 Genrei Fan

  Increase max.CP by 50% but reduce max. HP by 20%.
• Universal Backpack

  Increase healing power of scrolls by 100%. Each turn recover 140 HP.
• Moai Flagon

  Increase Max. HP by 3%. Reduce damage taken by 100.
• Shoguns Badge Gourd

  Increase Max. HP & CP by 3%
• Yawata Magatama

  Increase 3% accuracy.
  Additional 20 HP damage upon all attack.
• Sanmoku Gourd

  Reduce damage taken by 65.
• Bell of Beast

  Recover HP by 3%. 15% chance to absorb 3% HP of enemy who attack you.
• Gunbai: Gyoji