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 :

• Butterfly Wings
• Mini Scroll
• S2 Demons erosion

  Recovers 4% of the users max HP every turn. Additional 100 damage on all attacks.
• Vertical Light

  Reduce 15 HP damage taken.
• Super Rabbit Doll

  Increase damage by 9%.
• S10 Frostguard's Bow

  A magical bow that has a very long range. Reduce target 8% CP on every weapon attack.
• Thorn hammer
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Scroll: Grassland
• Black Silver Electric Guitar
• S15 Frozen Large Sword

  Increase 7% purify chance.
• Aboriginal Hunting Set

  Increase accuracy by 5% and Combustion chance 6%.
• Light of Eternal

  Increase Max.HP 3%. Recover 3% SP at the start of every turn.
• S68 Supreme Faerie Wings

  Recover 20% extra CP when charge. Has 10% chance to convert damage taken to HP positively.
• Extra Large Presents Bag

  A large present bag, but nobody knows what it contains.
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.
• GM back item
• Colorful Snowflake

  Increase agility by 1. Has 15% chance to freeze enemy who attacks user (2 turns). Frozen target cannot move but damage taken is reduced by 80%.
• Cancer Assegai

  Increases critical rate by 4%. Reduce damage taken by 3%.
• Mother's Hug

  Recover 100 HP and 2% HP at the start of every turn.
• Dark Secret Seal

  Increases critical chance by 4%. Has 12% chance to Restrict anyone who attacks the user.
• Cheerful Snowman

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

  5% chance to convert damage taken to HP positively.
• Love Missile

  Additional 60 HP damage upon all attack.
• S62 Black Steel Swords

  Restores 5% of users max HP.
• S2 Solar Aura

  Increase agility by 3 and accuracy by 7% .
• Tail of Jyubi

  Forged with chakra of the legendary tailed beast, Jyubi. Increase attack damage by 15% but reduce max. CP by 30%.