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 :

• Cornucopia

  Increase healing power of scrolls by 100%. Has 6% chance to convert damage taken to HP positively.
• Flour Stick
• S49 Serpent Dragon Chakram

  An exceptional weapon crafted with serpent and dragon remains. Increases agility by 1 and accuracy by 7%.
• S53 Frostfire Soul

  Increases combustion chance by 15%. Has a 10% chance to freeze enemies who attacks the user for 1 turn. Frozen targets cannot act but takes 80% reduced damage.
• Virgos Eternal Wings

  Increases agility by 1. Increases users attack damage by 3%.
• Shishimai Back

  Restores 3% of users max HP.Has 4% chance to convert damage taken to HP positively.
• Carrot Launcher

  Increase agility by 1. (Easter 2011 Limited Edition)
• 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.
• Orange Kikyo Skis
• S24 Junsei Ring

  Increase max. HP by 5%.
• Wings of Eternal Eclipse

  Increases critical chance by 3%. Ignores 6% of the targets dodge rate.
• Sakura Lucky Cat

  Ignore enemys dodge rate by 4% and increase 3% dodge rate.
• S31 Yabusa Dual Head Spear

  Increase 4% damage and 4% critical rate.
• Mini Scroll
• Sakon Three Blades
• S12 Golden Bujin Ax

  Increase attack damage by 20% but increase damage taken by 12%.
• Thanksgiving Candle

  Has 15% chance to absorb 2% HP of enemy who attack you. Increase 7% Combustion chance.
• Mirror of Shamisen
• Mother's Hug (II)

  Recover 150 HP and 3% HP at the start of every turn.
• S12 Golden Bujin Jitte

  Increase dodge rate by 10%.
• S80 Struggle Flag

  Recover HP by 2%. Recover 7% HP with every Charge.
• Sakura Rain Battle Umbrella
• Mini Goldfish
• S58 Scroll of Shadows

  Increases damage by 6% and dodge rate by 5%.
• S8 Sign of Corruption

  Wings with an ominous aura. Increases agility by 3.
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• Paper Windmill

  Additional 20 HP damage upon all attack.