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 :

• Bell of Beast

  Recover HP by 3%. 15% chance to absorb 3% HP of enemy who attack you.
• Toxic Spider Web

  10% chance to apply Restriction on enemies who attacks the user for 1 turn.
  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• S79 Blood Feather

  Has 15% chance to convert damage taken to HP positively.
• Dark Secret Seal

  Increases critical chance by 4%. Has 12% chance to Restrict anyone who attacks the user.
• Angel Heart (Black)

  Reduce target 8% CP on every weapon attack.
• 2011 Carnival Jiegu

  Ninja Saga 2nd Anniversary Carnival! Each turn recover 100 HP and 100 CP.
• S41 Dragon Gunnery

  Increase 25% Combustion chance, Ignore enemys dodge rate by 5%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Dark Evil Sickle

  Exclusive Halloween item - the devils sickle that has 10% chance to absorb 1% HP of enemy who attack you.
• Scroll: Red Curse seal
• S72 Hero Twin Axe

  Increase 12% Combustion Chance and recover 3% HP at the start of every turn. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Swire Raijinco
• S54 Ebony Nunchaku

  Increases damage by 7%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• GM Goldfish

  GM Goldfish
• Fairy Fishing Rod

  Each turn recover 3% HP and 100 CP
• Angel Heart (White)

  16% chance to absorb 2% HP of enemy who attack you.
• Smoothbore Musket

  Increase 10% damage.
  Reduce 3% damage taken.
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Wings of Eternal Eclipse

  Increases critical chance by 3%. Ignores 6% of the targets dodge rate.
• S76 Buckler and Sword

  Increase max.HP by 12% but reduce max. CP by 2%.
• Shadow Twin Blades
• S73 Smite Evil Shield

  Has 25% chance to absorb 2% HP of enemy who attack you. 8% chance to convert damage taken to HP positively.
• Holiday Doll

  Expecting Santa in every year! Critical and dodge rate increase 3%.
• Master Scroll

  Restores HP & CP by 3%.
• Hanami Dango

  Reduces damage received by 7%. Restore 85 HP every turn.
• S15 Frozen Large Sword

  Increase 7% purify chance.
• Ramen Shop Lantern
• Sakura Lucky Cat

  Ignore enemys dodge rate by 4% and increase 3% dodge rate.