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 :

• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• New Year Kadomatsu

  Recover 100 HP and 100 CP at the start of every turn.
• Scroll: Kinjutsu I
• Charming Aura (Black)

  2012 Valentines day limited aura, increase critical chance 2%.
• S17 Scorching Sun Scroll

  Has 30% chance to absorb 1% HP of enemy who attack you.
• Book of Slate

  Decreases Max. HP by 1% and Increase Max. CP by 10%. Increase 3% purify chance.
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• Native Drum

  5% chance to convert damage taken to HP positively.
• Scroll: Grassland
• Civet Cat Tail
• Gummy Bear

  Restores CP by 2%. Reduce damage taken by 100.
• S15 Frozen Large Sword

  Increase 7% purify chance.
• Dark World Hammer
• S44 Earth Caller

  Increases attack damage by 4% and max HP by 5%.
• Luckey windmill

  Each turn recover 120 HP and 120 CP.
• Sakura Lucky Bag

  Increase 3% damage, 4% chance to freeze attackers for 1 turn . Frozen target cannot move but damage taken is reduced by 80%
• S18 Evil Spirit Shield

  Reduce 14% damage taken.
• Christmas Pudding

  Recover 200 HP and 200 CP at the start of every turn but reduce agility by 10.
• Christmas Bag

  Reduce damage taken by 10.
• S66 Dark Wings

  Remnants of a powerful dark spirit. Increases attack and critical rate by 4%. Increases accuracy by 5%.
• 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%.
• S1 Angelic Silverware

  Increase dodge rate by 5%. Reduce damage taken by 9%.
• Drum: Ako
• S81 Wheel of Glory

  Reduce damage taken by 200. Increase Combustion chance by 15%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)