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 :

• S7 Gorgeous Butterfly

  Increase agility by 2. Recover 20% extra CP when charge.
• Karasu Miya Falcon

  Increase dodge rate by 6%.
• Dark World Hammer
• Sakura Rain Battle Umbrella
• Shinobi Curse Battle Umbrella
• Scroll: Rikugo
• S15 Frozen Huge Sword

  Recupera 26% extra CP en cada recarga.
• S34 Wooden Name Tag

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.
• Call of the Angel

  Reduce damage taken by 100. Has 6% chance to convert damage taken to HP positively.
• Leos Recurve Bow

  Increases damage by 4% and dodge rate by 1%.
• Aboriginal Hunting Set

  Increase accuracy by 5% and Combustion chance 6%.
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Lucky Chess

  Has 5% chance to freeze enemy who attacks user (3 turn). Frozen target cannot move but damage taken is reduced by 80%. Each turn recover 100 HP and 100 CP.
• Angel Heart (White)

  16% chance to absorb 2% HP of enemy who attack you.
• 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)
• S3 Fossil of Magatama

  Increase purify chance by 6%. Has 10% chance to convert damage taken to HP positively.
• Iron Tortoise Shell

  Reduce damage taken by 200.
• Mousetrap

  15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Large Wooden Hammer
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• S10 Frostguard's Bow

  A magical bow that has a very long range. Reduce target 8% CP on every weapon attack.
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• Father's Heart (II)

  Reduce damage taken by 7%. Reduce damage taken by 150.
• S16 King Kong Ring

  Recover HP by 1% and reduces damage received by 4%.
• Golden-bound Cudgel
• Flag: Dragon Symbol