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 :

• Decorative Rope
• Virgos Eternal Wings

  Increases agility by 1. Increases users attack damage by 3%.
• Shigu Twin Blades
• Angel Heart (Black)

  Reduce target 8% CP on every weapon attack.
• 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.
• Fathers Treasure

  2014 Fathers Day special back item. Doubles the TP reward from TP missions.
• S12 Golden Bujin Ax

  Increase attack damage by 20% but increase damage taken by 12%.
• Mech of Wing

  Reduce damage taken by 10%.
• S83 Four Wings

  Increase dodge rate by 8%.
• Taoist Spirit Stone

  Increases Max. HP by 3% and Max. CP by 5%. Increase purify chance by 1%.
• Sakura Lantern

  Increase Combustion chance by 10%.(Minimum requirement of 1 Attribute Point in Fire to activate combustion effect). Has 10% chance to absorb 2% HP of enemy who attack you.
• Christmas Chimney

  4% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Fighting spirit Taiko
• Santa Gift Bag

  Reduce damage taken by 30.
• Scroll: Rikugo
• War Flag: World Peace
• Chakra Kanawa

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• White Metal Hammer
• S15 Frozen Large Sword

  Increase 7% purify chance.
• S8 Underworld Bulwark

  A phantom shield with demon soul. Reduce damage taken by 10%.
• 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.
• Toxic Mushroom

  Increases damage by 10% but the user takes 200 HP damage every turn.
• S32 Black Senbu

  Recover HP by 4% and reduces damage received by 3%.
• S53 Frostfire Soul

  Increases combustion chance by 15%. Has a 10% chance to freeze enemies who attacks the user for 1 turn. Frozen targets cannot act but takes 80% reduced damage.
• Blue Crystal Wings

  Recover 15% extra CP when charge.
• Hanagara Dama

  Increase max. CP by 6%
• Egg Hunter Basket

  Increase 6% accuracy. (Easter 2011 Limited Edition)