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 :

• Crimson Lanterns

  Increase attack damage by 6%. Has 6% chance to convert damage taken to HP positively.
• Venom Ghost

  Has 5% chance to convert damage taken to HP positively. Recover HP by 100 every turn.
• New Year Kadomatsu

  Recover 100 HP and 100 CP at the start of every turn.
• Scroll: Kochin
• Hidden Green Umbrella
• S15 Frozen Huge Sword

  Recupera 26% extra CP en cada recarga.
• Dark World Hammer
• 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.
• Book of Slate

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

  Additional 170 HP damage upon all attack.
• Rose Bouquet

  Recover CP by extra 5% per charge
• Father's Heart (II)

  Reduce damage taken by 7%. Reduce damage taken by 150.
• Jaws

  Ignore 4% targets dodge.
• White Guitar
• Ukon Three Blades
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.
• 2011 Carnival Jiegu

  Ninja Saga 2nd Anniversary Carnival! Each turn recover 100 HP and 100 CP.
• Flame Soul Electric Guitar
• S9 Akazonke Gunbai

  Increase 4% critical rate and ignore 4% targets dodge.
• Vertical Light

  Reduce 15 HP damage taken.
• Chakra Kanawa

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Scroll: Terminated Rock
• Beast Mace
• Sealed Wood

  A back item which lost the original effectiveness.
• 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%
• Shoguns Badge Gourd

  Increase Max. HP & CP by 3%
• Roasted Turkey

  Restore 20 HP every turn.