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 :

• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%. But reduce critical chance by 1%.
• Ferret Tail
• Green Koi
• Huginn & Muninn

  Reduce 4% damage taken. Has 10% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Love Ribbon

  Additional 40 HP damage upon all attack.
• Charming Aura (Black)

  2012 Valentines day limited aura, increase critical chance 2%.
• Chromaflake

  Increases damage by 5% and dodge rate by 3%.
• S71 Magic Clock

  Increases Max. CP by 10%. Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Sealing the soul barrel
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• Childhood Memories

  Mothers Day 2011 Limited Edition
• Soul of Egg Hunting Beast

  2012 Egg Hunting Event
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Ninja Postman Bag

  Increase healing power of scrolls by 50%.
• Snowflake

  3% chance to freeze enemy who attack user (1 turn). (Frozen target cannot move but damage taken is reduced by 80%.)
• S10 Kikyo Umbrella

  6% chance to convert damage taken to HP positively.
• Flour Stick
• S61 God Dragon Flag

  Increase critical rate by 6%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Swire Raijinco
• S65 Transcendent Flame Wings

  Remnants of a powerful fire spirit. Increases attack damage by 7% and increase 20% Combustion chance. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Wood Top
• Scroll: Grassland
• Decorative Rope
• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• Cupids Flying Envelop

  A message to a far away lover.
  Reduces damage taken by 60.
  Increases max HP by 5%.
• War Flag: World Peace
• Rose Bouquet

  Recover CP by extra 5% per charge