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 :

• Clear Cross

  Increase 3% purify chance. Each turn recover 150 HP and 150 CP.
• Trident
• Smoothbore Musket

  Increase 10% damage.
  Reduce 3% damage taken.
• Father's Heart (II)

  Reduce damage taken by 7%. Reduce damage taken by 150.
• Mercy Of Libra

  Recover 2% HP at the start of every turn. And recover 3% HP with every Charge.
• Horror Scarecrow

  Increase attack damage by 5%. Reduce damage taken by 150.
• Love of coffee

  Prepared with love and empathy. Recovers 100 HP every turn. Increases attack damage by 4%.
• S50 Blood Shade Magatama

  Created with blood and molten lava, the blood shade magatama consumes the life force of anyone with malicious intent. Has a 8% chance to absorb 10% of the attackers max HP and 8% chance to convert any damage taken to HP.
• Bat Back Item

  Back item design with reference from Halloween - Bats. Increase 5% dodge rate and decrease damage 5% at the same time.
• Luckey windmill

  Each turn recover 120 HP and 120 CP.
• Banana Back Item

  Banana Back Item
• S17 Scorching Sun Scroll

  Has 30% chance to absorb 1% HP of enemy who attack you.
• S4 Bladed Wings

  Reduce damage taken by 400. Recovers 1% of the user's max HP
• Mirror of Thousand Hands
• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• S14 Ancient Yabusa Knife

  Increases attack damage 4% and ignore 3% of targets dodge.
• Cheerful Snowman

  Increase Max. CP by 20%. Recover 2% HP at the start of every turn. but reduce max. HP by 12%.
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• Ritual Taiko
• Genin backpack (Blue)

  Double mission XP reward in level 11 to level 20.
• S52 Gold Dragon Scroll

  Reduce damage taken by 7%. Ignore targets dodge rate by 5%.
• Steel Frame Tail
• Orange Kikyo Skis
• Cancer Assegai

  Increases critical rate by 4%. Reduce damage taken by 3%.
• Light Cry Raijinco
• Ninja Bunny Doll

  Increase 2% damage and ignore 3% targets dodge.