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 :

• Ukon Three Blades
• Shadow Twin Blades
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• Patriot Aegis

  A mythical shield that can block even the most vicious attacks. Increases max HP by 3%. Has a 60% chance to recover 5% of maximum HP and reduces damage taken by 75.
• Yawata Magatama

  Increase 3% accuracy.
  Additional 20 HP damage upon all attack.
• Choco Tama

  Increase accuracy by 5% and increase healing power of scrolls by 25%.
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• Senior Kari Bagpack

  Reduce 3% damage taken.
• Swordfish
• Jaws

  Ignore 4% targets dodge.
• Rose Cloak

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• Christmas Trumpet

  Ignore enemys dodge rate by 4% and recover 3% CP with every charge.
• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• Zombie Hand

  Increase attack damage by 15%. But each turn reduce 200 HP and 300 CP.
• Evil Way Lute

  Has a 50% chance to recover 5% of maximum HP. Has 10% chance to absorb 3% HP
• Blessed Kitty

  Bless on his master everyday, which increase 3% damage. Heal 1% HP in every turn.
• Grand Light Gourd

  Increase 3% damage
• Ritual Taiko
• S78 Wandering Soul

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

  Additional 40 HP damage upon all attack.
• Chakra Kanawa

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Scroll: Guren
• Successor Fan

  Restores HP & CP by 2%. Has 7% chance to freeze enemy who attacks user (2 turn). Frozen target cannot move but damage taken is reduced by 80%.
• S18 Evil Spirit Shield

  Reduce 14% damage taken.
• War Flag: World Peace
• S2 Solar Aura

  Increase agility by 3 and accuracy by 7% .