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 :

• S2 Ancient Bone Claw

  An ancient bone that emanates great power. Increases accuracy by 8%. Recovers 100 HP every turn.
• Ritual Taiko
• War Flag: Furinkazan
• Sakura Gold Jewellery

  Increases users agility by 1. Restores 3% of users max HP. Has 6% chance to convert damage taken to HP positively.
• S13 Kishu Twin Blades

  Increase accuracy by 8%
• Wine Gourd
• Trident
• Mini Evil Wing

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

  Reduce damage taken by 6%.
• Heian-kyo Shamisen
• Water Energy Skis
• Civet Cat Tail
• Choco Tama

  Increase accuracy by 5% and increase healing power of scrolls by 25%.
• Hanami Fan

  Ignore 4% targets dodge and increase max. HP by 2%.
• S2 Scroll Capsule

  Increase attack damage by 8%. Recover 7% cp after dealing damage.
• Gunbai: World Peace
• Four-Point Shuriken
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• Clear Cross

  Increase 3% purify chance. Each turn recover 150 HP and 150 CP.
• Folding Fan: Shino
• War Flag: World Peace
• Blue Wolf Tail
• Scroll: Flying Phoenix
• Cheerful Snowman

  Increase Max. CP by 20%. Recover 2% HP at the start of every turn. but reduce max. HP by 12%.
• GM Goldfish

  GM Goldfish
• S10 Frostguard's Bow

  A magical bow that has a very long range. Reduce target 8% CP on every weapon attack.