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 :

• Christmas Bag

  Reduce damage taken by 10.
• Scroll: Kochin
• S19 Magatama Soul Barrel

  Increase 4% critical rate and ignore 4% targets dodge.
• Master Scroll

  Restores HP & CP by 3%.
• Raijin Raijinco
• S14 Ancient Yabusa Knife

  Increases attack damage 4% and ignore 3% of targets dodge.
• Christmas Pudding

  Recover 200 HP and 200 CP at the start of every turn but reduce agility by 10.
• Yolanda Rescue First Aid Kit
• Toxic Spider Web

  10% chance to apply Restriction on enemies who attacks the user for 1 turn.
  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• Christmas Trumpet

  Ignore enemys dodge rate by 4% and recover 3% CP with every charge.
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• S27 Golden Gourd

  Recover 5% HP with every Charge.
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• 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.
• Jaws

  Ignore 4% targets dodge.
• Love Ribbon

  Additional 40 HP damage upon all attack.
• Cancer Assegai

  Increases critical rate by 4%. Reduce damage taken by 3%.
• S18 Evil Spirit Wings

  Increase 10% critical rate.
• S55 Mirror of Fantasy

  Increases damage by 6% and accuracy by 5%. Has a 7% chance to convert any damage taken to HP.
• Three-stringed Lute Guitar
• Shield of Holy Beast

  Reduce 5% damage taken. 6% chance to convert damage taken to HP positively.
• S75 Trifecta Swords

  It gives off a strange feeling of vigor. Restores CP by 3%. Increases max CP by 7%.
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• Balloon Rabbit Doll

  Has 8% chance to convert damage taken to HP positively.
• Golden Torch of Zeus

  Recover 150 HP every turn
• Angel Heart (Black)

  Reduce target 8% CP on every weapon attack.
• Frost Soul Electric Guitar