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 :

• Carnival Taiko

  Play the Taiko in Ninja Saga Anniversary Carnival! Recover 5 HP and CP at the start of every turn.
• Prestige Purple Dragon

  Increase attack damage by 5%. Recover 100 HP at the start of every turn.
• Scroll: Guren
• Red Ukiyo-e Kite

  4% chance to convert damage taken to HP positively and increase max. HP by 2%.
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• Taoist Spirit Stone

  Increases Max. HP by 3% and Max. CP by 5%. Increase purify chance by 1%.
• Steel Frame Tail
• S75 Trifecta Swords

  It gives off a strange feeling of vigor. Restores CP by 3%. Increases max CP by 7%.
• S9 Ancient Akazonke Gunbai

  Increase critical rate and accuracy by 4%. But reduce Max.HP by 2%.
• S15 Seitenken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Jaws

  Ignore 4% targets dodge.
• Silver Torch of Zeus

  Increase mission gold reward by 300.
• Native Horn

  Increase max. CP by 3%, Recover 1% HP with every Charge.
• Minotaurs Horn

  Recover 350 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.
• S14 Profound Tentacles

  35% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Scroll: Genbu
• Shadow Twin Blades
• S21 Rokulin Gunbai

  Ignore enemys dodge rate by 8%.
• Businessman Luggage
• Angel Heart (Black)

  Reduce target 8% CP on every weapon attack.
• S34 Wooden Name Tag

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• S24 Junsei Ring

  Increase max. HP by 5%.
• Purple Mixing Yellow Umbrella
• Mimosa
• S14 Ancient Yabusa Knife

  Increases attack damage 4% and ignore 3% of targets dodge.
• Cheerful Snowman

  Increase Max. CP by 20%. Recover 2% HP at the start of every turn. but reduce max. HP by 12%.
• Wooden Repeating Crossbow