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 :

• Horror Scarecrow

  Increase attack damage by 5%. Reduce damage taken by 150.
• 4th Anniversary Back Item

  Ninja Saga 4th Anniversary edition! Recover 50 HP and 150 CP at the start of every turn.
• Togatsuki Paper Fan

  Increase max. CP by 10%.
• White Guitar
• Love Missile

  Additional 60 HP damage upon all attack.
• Aboriginal Hunting Set

  Increase accuracy by 5% and Combustion chance 6%.
• War Flag: Syoshin

  Increase mission XP reward by 100.
• S21 Rokulin Gunbai

  Ignore enemys dodge rate by 8%.
• Ritual Taiko
• Snowflake

  3% chance to freeze enemy who attack user (1 turn). (Frozen target cannot move but damage taken is reduced by 80%.)
• Ronin Straw Hat

  Additional 100 HP damage upon all attack.
• Sakura Straw Hat

  Recovers 2% of users max HP every turn.
• Frost Soul Electric Guitar
• Poor Bag

  7% chance to convert damage taken to HP positively. Reduce damage taken by 5%.
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• Black Metal Hammer
• Rose Cloak

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• Native Horn

  Increase max. CP by 3%, Recover 1% HP with every Charge.
• Hanagara Dama

  Increase max. CP by 6%
• S16 Umbra Fire Wheel

  Additional 170 HP damage upon all attack.
• Bronze Torch of Zeus

  Increase mission XP reward by 200
• Enternal Love Scroll

  Increase 5% Combustion chance and reduce 1% damage taken.
• Scroll: Flying Phoenix
• S60 Amber Jewel Wings

  Increases attack damage by 10% and increase 5% Combustion chance.
• Three-stringed Lute Guitar
• Screw Pattern Skis
• S14 Profound Tentacles

  35% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.