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 :

• Hanami Dango

  Reduces damage received by 7%. Restore 85 HP every turn.
• Victorious Crown

  Increases accuracy by 4% and recover HP by 3%. Has 13% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Dark Cry Raijinco
• S15 Seitenken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• 2011 Carnival Jiegu

  Ninja Saga 2nd Anniversary Carnival! Each turn recover 100 HP and 100 CP.
• Choco Tama

  Increase accuracy by 5% and increase healing power of scrolls by 25%.
• Civet Cat Tail
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• S17 Scorching Sun Lantern

  Recover 10% cp after dealing damage.
• S14 Profound Pincers

  20% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Leopard Cat Tail
• Angel Wings

  Increase 3% attack damage and ignore 3% targets dodge.
• Justice and Freedom

  Flag of the United States of America which symbolizes freedom and liberty. Recover 3% HP with every charge. Increases critical rate by 3%. Reduces damage taken by 50.
• Blue Shell
• Shadow Umbrella
• Thanksgiving Candle

  Has 15% chance to absorb 2% HP of enemy who attack you. Increase 7% Combustion chance.
• S14 Profound Tentacles

  35% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Prestige Purple Dragon

  Increase attack damage by 5%. Recover 100 HP at the start of every turn.
• Knot of Avenger

  20% chance to absorb 2% HP of enemy who attack you. 20% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Tailed Beast Chakra Crystal

  Increase 3% damage.
  Reduce 3% damage taken.
  Recover 2% HP each turn start.
• Falcon
• Scroll: Guren
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• S16 King Kong Ring

  Recover HP by 1% and reduces damage received by 4%.
• GM Phone

  GM Phone
• Gruidae Wing

  Each turn recover 80 CP. Recover CP after HP reduction. (Amount: 8% of HP reduction)
• Cerberus's Flame

  80% chance to burn enemy who attack user - Reduce 3% HP for 2 turns.