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 Pudding

  Recover 200 HP and 200 CP at the start of every turn but reduce agility by 10.
• Ishiyama Lantern

  Reduce damage taken by 49.
• S29 Yanki Protective Magatama

  Increase accuracy by 8%
• Thanksgiving Balloons

  Increase max. HP by 2%.
• Writing Brush
• S11 Wood Spirit's Shield

  Increase max. HP by 9% and 20% chance to absorb 3% HP of enemy who attack you.
• Banana Back Item

  Banana Back Item
• S56 Curse Brush

  A legendary Ink Brush that has the ability to materialize drawings. Increase critical rate by 5% and accuracy by 6%.
• Shoguns Badge Gourd

  Increase Max. HP & CP by 3%
• 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.
• Universal Backpack

  Increase healing power of scrolls by 100%. Each turn recover 140 HP.
• S74 Burning Wings

  Increases attack damage by 4% and Combustion chance by 25%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Butterfly Wings
• Scroll: Messenger (7 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• S63 Stormbringer

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

  Increase agility by 1. (Easter 2011 Limited Edition)
• Water Shark Skis
• Mother's Hug

  Recover 100 HP and 2% HP at the start of every turn.
• S14 Profound Tentacles

  35% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• S35 Mini Teiko

  Increase agility by 1 and ignore enemys dodge rate by 2%.
• Justice and Freedom

  Flag of the United States of America which symbolizes freedom and liberty. Recover 3% HP with every charge. Increases critical rate by 3%. Reduces damage taken by 50.
• Gemini Halo Glyph

  Increases damage by 4%. Reduce damage taken by 65.
• Ichimoku Gourd
• S15 Ancient Seitenken

  Recover CP after HP reduction. (Amount: 16% of HP reduction)
• Santa Gift Bag

  Reduce damage taken by 30.
• Three-stringed Lute Guitar
• Shield of Holy Beast

  Reduce 5% damage taken. 6% chance to convert damage taken to HP positively.