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 :

• Sakura wah

  Restores HP by 3% and CP by 99 each turn.
• Sweet Treat

  Increase critical chance by 2% and dodge rate by 3%.
• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• Jaws

  Ignore 4% targets dodge.
• Roasted Turkey

  Restore 20 HP every turn.
• Osuzu Shinsen

  Ninja Saga 2nd Anniversary Carnival! Increase all attack damage by 5%.
• Scroll: Guren
• Dark Plate Twin Blades
• Enternal Love Scroll

  Increase 5% Combustion chance and reduce 1% damage taken.
• Mercy Of Libra

  Recover 2% HP at the start of every turn. And recover 3% HP with every Charge.
• Yolanda Rescue First Aid Kit
• Four-Point Shuriken
• Ink Cloud

  Additional 40 HP damage upon all attack.
• Venom Ghost

  Has 5% chance to convert damage taken to HP positively. Recover HP by 100 every turn.
• Shinobi Curse Battle Umbrella
• Scroll: Terminated Rock
• Ichimoku Gourd
• S1 Helianthus

  Restores HP & CP by 5%. Increase purify chance by 5%.
• Seal Nightmare Wing

  Ignore 4% targets dodge.
• Blue Crystal Wings

  Recover 15% extra CP when charge.
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• Basic Jounin Battle Gear
• Cursed Devil

  Increase attack damage by 15%. But reduce max. HP and max. CP by 10%
• Prestige Purple Dragon

  Increase attack damage by 5%. Recover 100 HP at the start of every turn.
• S4 Bladed Wings

  Reduce damage taken by 400. Recovers 1% of the user's max HP
• Apple Candy

  Increases damage by 5%. Has 3% chance to convert damage taken to HP positively.
• S3 Fossil of Magatama

  Increase purify chance by 6%. Has 10% chance to convert damage taken to HP positively.