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 :

• Little Shikigami

  Increases accuracy by 5%. Adds 80 damage in all of your attacks.
• Scroll: Terminated Rock
• S26 Bashosen

  Increase 10% Combustion chance.
• S13 Slaughter Double Sickle

  Recover HP by 1%. 20% chances of using Jutsu without CP.
• S14 Ancient Yabusa Knife

  Increases attack damage 4% and ignore 3% of targets dodge.
• Patriot Aegis

  A mythical shield that can block even the most vicious attacks. Increases max HP by 3%. Has a 60% chance to recover 5% of maximum HP and reduces damage taken by 75.
• S32 Black Senbu

  Recover HP by 4% and reduces damage received by 3%.
• Large Wooden Hammer
• 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%
• Shinobi Curse Battle Umbrella
• Mini Scroll
• Magical Wreath

  Recover HP by 2% and reduce 4% damage taken.
• Vampire Cloak

  Increase healing power of scrolls by 100.
• Scroll: Flying Phoenix
• Angel Heart (White)

  16% chance to absorb 2% HP of enemy who attack you.
• S12 Blood Evil Gourd

  Increase max. HP by 5%.
• Smart Phone
• S10 Kikyo Umbrella

  6% chance to convert damage taken to HP positively.
• Christmas Trumpet

  Ignore enemys dodge rate by 4% and recover 3% CP with every charge.
• Firefox Tail
• S21 Rokulin Gunbai

  Ignore enemys dodge rate by 8%.
• S20 Empire Battle Gear

  6% chance to convert damage taken to HP positively.
• Ghost Spider

  Reduce 72 HP damage taken.
• Orange Koi
• Dark World Hammer
• Swordfish
• Nutcracker

  Increases Max. HP by 4% and damage by 3%.