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 :

• Christmas Trumpet

  Ignore enemys dodge rate by 4% and recover 3% CP with every charge.
• Wood Top
• Toxic Mushroom

  Increases damage by 10% but the user takes 200 HP damage every turn.
• Scroll: Messenger

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

  It will fly you to the moon! (Easter 2011 Limited Edition)
• Flag: Dragon Symbol
• Ink Cloud

  Additional 40 HP damage upon all attack.
• 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)
• Thorn hammer
• Basic Jounin Battle Gear
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%. But reduce critical chance by 1%.
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• Tail of Jyubi

  Forged with chakra of the legendary tailed beast, Jyubi. Increase attack damage by 15% but reduce max. CP by 30%.
• 2011 Fortune Lantern

  Ninja Saga 2nd Anniversary Carnival!
• S1 Angelic Silverware

  Increase dodge rate by 5%. Reduce damage taken by 9%.
• Sanmoku Gourd

  Reduce damage taken by 65.
• Master Scroll

  Restores HP & CP by 3%.
• Orange Koi
• Rose Cloak

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• Ninja Snowman

  3% chance to convert damage taken to HP positively.
• S55 Mirror of Fantasy

  Increases damage by 6% and accuracy by 5%. Has a 7% chance to convert any damage taken to HP.
• S63 Stormbringer

  Increases dodge rate by 5%. Has 50% chance to absorb 2% HP of enemy who attack you.
• S44 Earth Caller

  Increases attack damage by 4% and max HP by 5%.
• Smoothbore Musket

  Increase 10% damage.
  Reduce 3% damage taken.
• Scroll: Messenger (7 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• S29 Yanki Protective Magatama

  Increase accuracy by 8%
• Jingle Bell

  Reduce 2% damage taken. Recover 3% HP at the start of every turn.