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 :

• Hanami Lantern

  2011 Hanami Festival - Shine! Reduce damage taken by 15.
• Pirate Skull Flag

  Increase 6% purify chance. Reduce damage taken by 5%.
• Mimosa
• Senior Kari Bagpack

  Reduce 3% damage taken.
• Santa Gift Bag

  Reduce damage taken by 30.
• White Metal Hammer
• S15 Ancient Seitenken

  Recover CP after HP reduction. (Amount: 16% of HP reduction)
• 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)
• Paper Umbrella

  Increase dodge by 3%. Reduce damage taken by 80.
• S12 Ancient Blood Evil Gourd

  Increase max. HP by 5%. But reduce Max.CP by 1%.
• Assault Kite

  Recover 100 HP and 80 CP at the start of every turn.
• Carp Flag
• S9 Warring Empire Bulwark

  A strong and sturdy shield. Reduces damage taken by 35% but reduces the user's agility by 15.
• S82 Amethyst Skull

  Increase purify chance by 5%. Recover 15% extra CP when charge.
• Father's Heart

  Reduce damage taken by 6%.
• S5 Umbrella of Spiritual Pulse

  Recover CP after HP reduction. (Amount: 10% of HP reduction) Recover 5% CP every turn if current CP is less than 50%. Has 8% chance to reduce skill cooldown by 1 turn at the start of each turn. (Not effective on talent skills)
• Great Wooden Hammer (7 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• S47 Kami's Blessing

  Increase critical chance 6% and critical damage 10%.
• Force of Taotie

  Reduce damage taken by 7%.
• Carrot Time Bomb

  Has 8% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%. Has 5% chance to convert damage taken to HP positively.
• Shigu Twin Blades
• Gunbai: World Peace
• Dark Secret Seal

  Increases critical chance by 4%. Has 12% chance to Restrict anyone who attacks the user.
• Scroll: Kochin
• Ultimate Taiko

  Recover 120 HP at the start of every turn. Has 15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Ninja Bunny Doll

  Increase 2% damage and ignore 3% targets dodge.
• Balloon Rabbit Doll

  Has 8% chance to convert damage taken to HP positively.