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 :

• Axe Hammer suit

  Increases damage and accuracy by 6%. Recover 50 HP at the start of every turn.
• Christmas Deer

  Increase critical chance 2% and critical damage 6%.
• Mousetrap

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

  Increase Max. HP & CP by 3%
• Scroll: Guren
• S68 Supreme Faerie Wings

  Recover 20% extra CP when charge. Has 10% chance to convert damage taken to HP positively.
• S36 Wind Chakra Magatama

  Increase accuracy by 3% and dodge rate by 3%.
• S10 Frostguard's Bow

  A magical bow that has a very long range. Reduce target 8% CP on every weapon attack.
• Deadwood Pipa
• S33 Book of Fate

  Increase Max. HP & CP by 4%
• Blue Crystal Wings

  Recover 15% extra CP when charge.
• Carp Flag
• New Year Kadomatsu

  Recover 100 HP and 100 CP at the start of every turn.
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• S10 Kikyo Umbrella

  6% chance to convert damage taken to HP positively.
• Matsuyama Fan

  Ignore enemys dodge rate by 6%.
• Ishiyama Lantern

  Reduce damage taken by 49.
• Yawata Magatama

  Increase 3% accuracy.
  Additional 20 HP damage upon all attack.
• Fighting spirit Taiko
• S4 Bladed Wings

  Reduce damage taken by 400. Recovers 1% of the user's max HP
• Falcon
• Sealing Pot

  Increases Max. HP by 4% and recover 3% HP at the start of every turn.
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Sakura Lucky Cat

  Ignore enemys dodge rate by 4% and increase 3% dodge rate.
• Hanagara Dama

  Increase max. CP by 6%
• Rose Bouquet

  Recover CP by extra 5% per charge