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 :

• Red Shuriken Skis
• Virgos Eternal Wings

  Increases agility by 1. Increases users attack damage by 3%.
• Christmas Wreath

  Increase agility by 1 and Max HP by 1%.
• Assault Kite

  Recover 100 HP and 80 CP at the start of every turn.
• Paper Umbrella

  Increase dodge by 3%. Reduce damage taken by 80.
• S38 Genrei Fan

  Increase max.CP by 50% but reduce max. HP by 20%.
• Iron Tortoise Shell

  Reduce damage taken by 200.
• Senior Kari Bagpack

  Reduce 3% damage taken.
• Hanagara Hagoita

  Increase max. HP by 3%.
• 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%
• S32 Black Senbu

  Recover HP by 4% and reduces damage received by 3%.
• S55 Mirror of Fantasy

  Increases damage by 6% and accuracy by 5%. Has a 7% chance to convert any damage taken to HP.
• S9 Warring Empire Guarding Bow

  An ancient enchanted bow with great range used in warfare. Increases accuracy by 10%. Restore 100 HP every turn.
• 4th Anniversary Back Item

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

  Increases damage by 5% and dodge rate by 3%.
• Spartan Shield

  Restore 100 HP every turn. Reduce damage taken by 5%.
• Sagittarius Hunting Set

  Increases dodge rate by 4%. Additional 80 HP damage on all attacks.
• Big Cheese

  Recover CP after HP reduction. (Amount: 10% of HP reduction)
• Hanami Dango

  Reduces damage received by 7%. Restore 85 HP every turn.
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• Cerberus's Flame

  80% chance to burn enemy who attack user - Reduce 3% HP for 2 turns.
• Decorative Rope
• Sakura Gold Jewellery

  Increases users agility by 1. Restores 3% of users max HP. Has 6% chance to convert damage taken to HP positively.
• Evil Way Lute

  Has a 50% chance to recover 5% of maximum HP. Has 10% chance to absorb 3% HP
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• Fighting spirit Taiko
• Wooden Repeating Crossbow