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 :

• Straw Hat

  Increase dodge rate by 3%.
• Cerberus's Flame

  80% chance to burn enemy who attack user - Reduce 3% HP for 2 turns.
• Toxic Mushroom

  Increases damage by 10% but the user takes 200 HP damage every turn.
• Raijin Raijinco
• S37 Ring of Chakra Flame

  Increase attack damage by 7%.
• Moai Flagon

  Increase Max. HP by 3%. Reduce damage taken by 100.
• S34 Wooden Name Tag

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Force of Taotie

  Reduce damage taken by 7%.
• Ice Cystal Raijinco
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• Toxic Spider Web

  10% chance to apply Restriction on enemies who attacks the user for 1 turn.
  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• S17 Scorching Sun Lantern

  Recover 10% cp after dealing damage.
• Mousetrap

  15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Sanmoku Gourd

  Reduce damage taken by 65.
• Ghost Spider

  Reduce 72 HP damage taken.
• Banana Back Item

  Banana Back Item
• Hidden Green Umbrella
• Universal Backpack

  Increase healing power of scrolls by 100%. Each turn recover 140 HP.
• Tailed Beast Chakra Crystal

  Increase 3% damage.
  Reduce 3% damage taken.
  Recover 2% HP each turn start.
• FIFA Whistle

  Recover 100 CP at the start of every turn and reduces damage taken by 80.
• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• Scroll: Messenger (3 Days)

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

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Yolanda Rescue First Aid Kit
• Scroll: Guren
• Black Koi