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 :

• Leos Recurve Bow

  Increases damage by 4% and dodge rate by 1%.
• FIFA Whistle

  Recover 100 CP at the start of every turn and reduces damage taken by 80.
• MegaJingleBell

  A glorious Christmas artifact which can be used in battle. Ignores 5% of enemys dodge rate. Recovers 2% of users max HP every turn.
• Ferret Tail
• Santa Gift Bag

  Reduce damage taken by 30.
• S16 King Kong Ring

  Recover HP by 1% and reduces damage received by 4%.
• Engagement Ring

  Additional 20 HP damage upon all attack.
• Mini Evil Wing

  Exclusive Halloween item - the devils wings that frighten enemy, and hence reduce their damage done on you by 5%.
• S18 Kamimachi Lantern

  Increase 4% critical rate and recover HP by 1%.
• S79 Blood Feather

  Has 15% chance to convert damage taken to HP positively.
• S2 Scroll Capsule

  Increase attack damage by 8%. Recover 7% cp after dealing damage.
• Shield of Holy Beast

  Reduce 5% damage taken. 6% chance to convert damage taken to HP positively.
• Carp Flag
• 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%
• Sakura Gold Jewellery

  Increases users agility by 1. Restores 3% of users max HP. Has 6% chance to convert damage taken to HP positively.
• S76 Buckler and Sword

  Increase max.HP by 12% but reduce max. CP by 2%.
• Gold Wand

  Ignore 5% targets dodge.
• Sakura Rain Battle Umbrella
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• S9 Akazonke Gunbai

  Increase 4% critical rate and ignore 4% targets dodge.
• Jaws

  Ignore 4% targets dodge.
• Red Ukiyo-e Kite

  4% chance to convert damage taken to HP positively and increase max. HP by 2%.
• S26 Bashosen

  Increase 10% Combustion chance.
• Mimosa
• Yolanda Rescue First Aid Kit
• Taurus Wand

  A necromantic wand with a figurehead of a bull. Used by necromancers in ancient times to amplify their power. Recover 100 HP at the start of every turn. Has a 12% chance to absorb 3% HP of enemies who attack you.
• S31 Yabusa Dual Head Spear

  Increase 4% damage and 4% critical rate.