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.
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• Decorate Battle Umbrella
• Father's Heart (II)

  Reduce damage taken by 7%. Reduce damage taken by 150.
• S2 Demons erosion

  Recovers 4% of the users max HP every turn. Additional 100 damage on all attacks.
• Mech of Battle Gear

  Increase critical chance 3% and critical damage 8%.
• Village Red Lantern
• Ancient Shinobi War Decorated

  Additional 60 HP damage upon all attack.
• Ame no Kemagatama

  Increase 3% accuracy.
  Additional 30 HP damage upon all attack.
• Spinning Wheel

  Recover user's max HP by 1% each turn. Increases user's max CP by 2%. Converts 10% of damage taken into CP.
• Falcon
• Master Scroll

  Restores HP & CP by 3%.
• Mother's Hug (II)

  Recover 150 HP and 3% HP at the start of every turn.
• Dark Secret Seal

  Increases critical chance by 4%. Has 12% chance to Restrict anyone who attacks the user.
• Ocean Ring

  Increase 1% accuracy.
  Additional 2 HP damage upon all attack.
• Stuff Bunny

  Increase Max. HP by 2% and Max. CP by 4%.
• Scroll and Blade

  Has 11% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills. Increase critical rate by 5%. 8% chances of using Jutsu without CP.
• S65 Transcendent Flame Wings

  Remnants of a powerful fire spirit. Increases attack damage by 7% and increase 20% Combustion chance. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Bear of Affection

  Increase dodge rate by 3% and ignore target dodge by 3%.
• Flame Blade Raijinco
• Carp Flag
• Dark World Hammer
• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• Scroll: Guren
• Scroll: Red Curse seal
• Roasted Turkey

  Restore 20 HP every turn.
• Lovely Santa Bag

  A bag that resembles Santa Claus, it emanates faint revitalizing aura. Restores 140 HP and 30 CP at the start of every turn.