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 :

• Mother's Hug

  Recover 100 HP and 2% HP at the start of every turn.
• Seal Nightmare Wing

  Ignore 4% targets dodge.
• S5 The Guider

  Increase purify chance by 7%. Recover 8% HP when purify. Recovers 4% of the user's max HP.
• Silver Torch of Zeus

  Increase mission gold reward by 300.
• S66 Dark Wings

  Remnants of a powerful dark spirit. Increases attack and critical rate by 4%. Increases accuracy by 5%.
• Ghost Spider

  Reduce 72 HP damage taken.
• Magical Wreath

  Recover HP by 2% and reduce 4% damage taken.
• Scroll: Messenger

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• Basic Jounin Battle Gear
• Angel Wings

  Increase 3% attack damage and ignore 3% targets dodge.
• Purple Mixing Yellow Umbrella
• Python Scales Raijinco
• S26 Bashosen

  Increase 10% Combustion chance.
• Skull Twins

  7% chance to convert damage taken to HP positively and 20% chance to absorb 1% HP of enemy who attack you.
• Death Wooden Coffin
• Mini Evil Wing

  Exclusive Halloween item - the devils wings that frighten enemy, and hence reduce their damage done on you by 5%.
• Heart Aura

  Hidden feelings emerges! Recovers 2% of the user's max HP and 100 HP every turn.
• Holiday Doll

  Expecting Santa in every year! Critical and dodge rate increase 3%.
• Grand Light Gourd

  Increase 3% damage
• Smart Phone
• Dragon Crucifix Spear
• Fire Symbol Guitar
• Hanagara Hagoita

  Increase max. HP by 3%.
• Scroll: Sun of Campaign
• Frost Soul Electric Guitar
• Orange Koi
• Togatsuki Paper Fan

  Increase max. CP by 10%.