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 :

• S18 Kamimachi Lantern

  Increase 4% critical rate and recover HP by 1%.
• Book of Slate

  Decreases Max. HP by 1% and Increase Max. CP by 10%. Increase 3% purify chance.
• S74 Burning Wings

  Increases attack damage by 4% and Combustion chance by 25%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Ukon Three Blades
• S2 Solar Aura

  Increase agility by 3 and accuracy by 7% .
• S47 Kami's Blessing

  Increase critical chance 6% and critical damage 10%.
• Merlins Magical book

  Increases attack damage 5%
• Bear of Affection

  Increase dodge rate by 3% and ignore target dodge by 3%.
• Flame Blade Raijinco
• Dark Secret Seal

  Increases critical chance by 4%. Has 12% chance to Restrict anyone who attacks the user.
• Firefox Tail
• Genin backpack (Blue)

  Double mission XP reward in level 11 to level 20.
• Scroll: Kochin
• Brilliant Stock Pot

  Increase max. HP by 8% and purify chance by 2% but reduce max. CP by 8%.
• Rose Cloak

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• Seal Nightmare Wing

  Ignore 4% targets dodge.
• Water Shark Skis
• Gold Wand

  Ignore 5% targets dodge.
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• S61 God Dragon Flag

  Increase critical rate by 6%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Falcon
• Yatai Lantern
• Love Missile

  Additional 60 HP damage upon all attack.
• Sengoku Flag

  Increases damage by 4%. Each turn recover 120 HP.
• Evil Claw Hammer

  Reduce 7 HP damage taken.
• S58 Scroll of Shadows

  Increases damage by 6% and dodge rate by 5%.
• Blizzard

  Increases users agility by 1. Has 7% chance to convert damage taken into HP.