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 :

• Python Scales Raijinco
• S17 Scorching Sun Scroll

  Has 30% chance to absorb 1% HP of enemy who attack you.
• Falcon
• Native Drum

  5% chance to convert damage taken to HP positively.
• Sand Gourd
• Shinobi Curse Battle Umbrella
• 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.
• 4th Anniversary Back Item

  Ninja Saga 4th Anniversary edition! Recover 50 HP and 150 CP at the start of every turn.
• Hanami Lantern

  2011 Hanami Festival - Shine! Reduce damage taken by 15.
• Red Koi
• S36 Wind Chakra Magatama

  Increase accuracy by 3% and dodge rate by 3%.
• Carrot Time Bomb

  Has 8% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%. Has 5% chance to convert damage taken to HP positively.
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• Ink Cloud

  Additional 40 HP damage upon all attack.
• Samurai Painted Wood

  5% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• S56 Curse Brush

  A legendary Ink Brush that has the ability to materialize drawings. Increase critical rate by 5% and accuracy by 6%.
• Folding Fan: Shino
• Drum of Euphoria

  Recover 3% HP at the start of every turn, and recover 3% HP with every Charge.
• Basic Jounin Battle Gear
• Vampire Cloak

  Increase healing power of scrolls by 100.
• S10 Kikyo Umbrella

  6% chance to convert damage taken to HP positively.
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Bat Back Item

  Back item design with reference from Halloween - Bats. Increase 5% dodge rate and decrease damage 5% at the same time.
• Big Cask

  Increase max.HP by 15% but reduce max. CP by 5%.
• S69 Skull Cloak

  Increases Max. HP by 4%. Restores HP by 4%. Increase attack damage by 6%.
• Pirate Skull Flag

  Increase 6% purify chance. Reduce damage taken by 5%.
• Mini Octopus