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 :

• Red Ukiyo-e Kite

  4% chance to convert damage taken to HP positively and increase max. HP by 2%.
• Tai Chi Gold Gourd

  Restores HP by 4%. Increase healing power of scrolls by 500%. Reduce target 3% CP on every weapon attack.
• S13 Slaughter Giant Axe

  Increase max.HP by 20% but reduce max. CP by 35%.
• Call of the Angel

  Reduce damage taken by 100. Has 6% chance to convert damage taken to HP positively.
• War Flag: Syoshin

  Increase mission XP reward by 100.
• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• S20 Empire Battle Gear

  6% chance to convert damage taken to HP positively.
• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• Tail of Hachibi

  Forged with chakra of the legendary tailed beast, Hachibi. Increase critical chance by 15% but reduce max. HP by 20%.
• Blue Cloud Umbrella

  Ignore 6% targets dodge.
• Sakura Lantern

  Increase Combustion chance by 10%.(Minimum requirement of 1 Attribute Point in Fire to activate combustion effect). Has 10% chance to absorb 2% HP of enemy who attack you.
• Taoist Spirit Stone

  Increases Max. HP by 3% and Max. CP by 5%. Increase purify chance by 1%.
• Ukon Three Blades
• Successor Fan

  Restores HP & CP by 2%. Has 7% chance to freeze enemy who attacks user (2 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Thorn hammer
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• Village Red Lantern
• Venom Ghost

  Has 5% chance to convert damage taken to HP positively. Recover HP by 100 every turn.
• S1 Angelic Silverware

  Increase dodge rate by 5%. Reduce damage taken by 9%.
• S19 Magatama Soul Barrel

  Increase 4% critical rate and ignore 4% targets dodge.
• Little Shikigami

  Increases accuracy by 5%. Adds 80 damage in all of your attacks.
• Thanksgiving Balloons

  Increase max. HP by 2%.
• Skull Twins

  7% chance to convert damage taken to HP positively and 20% chance to absorb 1% HP of enemy who attack you.
• Cursed Devil

  Increase attack damage by 15%. But reduce max. HP and max. CP by 10%
• Twins Sakura

  Ignore 5% targets dodge.
• War Flag: World Peace
• Radish Launcher

  It will fly you to the moon! (Easter 2011 Limited Edition)