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 :

• Santa Gift Bag

  Reduce damage taken by 30.
• S61 God Dragon Flag

  Increase critical rate by 6%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• S64 Twin Pinnacle Spear

  Powerful spears that can pinpoint enemy's weaknesses. Increases accuracy by 12%. But reduce self dodge rate by 5%.
• S20 Empire Battle Gear

  6% chance to convert damage taken to HP positively.
• S60 Amber Jewel Wings

  Increases attack damage by 10% and increase 5% Combustion chance.
• Screw Pattern Skis
• Great Wooden Hammer

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Black Metal Hammer
• S38 Genrei Fan

  Increase max.CP by 50% but reduce max. HP by 20%.
• Ink Cloud

  Additional 40 HP damage upon all attack.
• S78 Wandering Soul

  Recover CP after HP reduction. (Amount: 15% of HP reduction) Recover 15% extra CP when charge.
• Mischievous Candy

  Increase accuracy by 3%. Increase healing power of scrolls by 50%.
• Mercy Of Libra

  Recover 2% HP at the start of every turn. And recover 3% HP with every Charge.
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%. But reduce critical chance by 1%.
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• Sengoku Flag

  Increases damage by 4%. Each turn recover 120 HP.
• Sakura Straw Hat

  Recovers 2% of users max HP every turn.
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• S45 Oblivion Ward

  Increases Max. HP by 3% and Max. CP by 6%.
• S9 Warring Empire Bulwark

  A strong and sturdy shield. Reduces damage taken by 35% but reduces the user's agility by 15.
• S23 Meschiken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• S32 Black Senbu

  Recover HP by 4% and reduces damage received by 3%.
• S44 Earth Caller

  Increases attack damage by 4% and max HP by 5%.
• S47 Kami's Blessing

  Increase critical chance 6% and critical damage 10%.
• S5 Umbrella of Spiritual Pulse

  Recover CP after HP reduction. (Amount: 10% of HP reduction) Recover 5% CP every turn if current CP is less than 50%. Has 8% chance to reduce skill cooldown by 1 turn at the start of each turn. (Not effective on talent skills)
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.