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 :

• Tail of Capricorn

  Increases dodge rate by 4%. Recovers 3% HP with every charge.
• Toxic Mushroom

  Increases damage by 10% but the user takes 200 HP damage every turn.
• Scroll: Double Head
• S28 Orochi Statue

  Increase attack damage by 4%, and recover HP by 1%.
• S13 Slaughter Giant Axe

  Increase max.HP by 20% but reduce max. CP by 35%.
• Cheerful Snowman

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

  5% chance to convert damage taken to HP positively.
• S34 Wooden Name Tag

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Python Scales Raijinco
• Scroll: Red Curse seal
• Crystal Ice Mirror

  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• S54 Ebony Nunchaku

  Increases damage by 7%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Mother's Hug (II)

  Recover 150 HP and 3% HP at the start of every turn.
• Carrot Launcher

  Increase agility by 1. (Easter 2011 Limited Edition)
• Taoist Spirit Stone

  Increases Max. HP by 3% and Max. CP by 5%. Increase purify chance by 1%.
• Purple Dragon umbrella
• S45 Oblivion Ward

  Increases Max. HP by 3% and Max. CP by 6%.
• Rose Cloak

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• S26 Bashosen

  Increase 10% Combustion chance.
• Choco Tama

  Increase accuracy by 5% and increase healing power of scrolls by 25%.
• Mercy Of Libra

  Recover 2% HP at the start of every turn. And recover 3% HP with every Charge.
• S1 Helianthus

  Restores HP & CP by 5%. Increase purify chance by 5%.
• Rose Bouquet

  Recover CP by extra 5% per charge
• Sakura Rain Battle Umbrella
• Golden Torch of Zeus

  Recover 150 HP every turn
• Hide Guitar