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 :

• GM back item
• S73 Smite Evil Shield

  Has 25% chance to absorb 2% HP of enemy who attack you. 8% chance to convert damage taken to HP positively.
• S8 Underworld Bulwark

  A phantom shield with demon soul. Reduce damage taken by 10%.
• Aboriginal Hunting Set

  Increase accuracy by 5% and Combustion chance 6%.
• S15 Frozen Huge Sword

  Recupera 26% extra CP en cada recarga.
• Blue Wolf Tail
• FIFA Whistle

  Recover 100 CP at the start of every turn and reduces damage taken by 80.
• Toxic Mushroom

  Increases damage by 10% but the user takes 200 HP damage every turn.
• Vertical Light

  Reduce 15 HP damage taken.
• S11 Wood Spirit's Bow

  Increase critical chance 13%.
• Leopard Cat Tail
• Sakura Lucky Cat

  Ignore enemys dodge rate by 4% and increase 3% dodge rate.
• Scroll: Messenger (3 Days)

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

  Mothers Day 2011 Limited Edition
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• Soul of Egg Hunting Beast

  2012 Egg Hunting Event
• Shinobi Curse Battle Umbrella
• Knot of Avenger

  20% chance to absorb 2% HP of enemy who attack you. 20% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Deadwood Pipa
• Three Ring Magatama

  Increase 2% accuracy.
  Additional 12 HP damage upon all attack.
• Big Cheese

  Recover CP after HP reduction. (Amount: 10% of HP reduction)
• Paper Umbrella

  Increase dodge by 3%. Reduce damage taken by 80.
• Puppet: Hakuki (7 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Folding Paper Fan
• S67 Omni Cloud

  Increase accuracy by 6% and dodge rate by 5%.
• Engagement Ring

  Additional 20 HP damage upon all attack.