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 :

• Evil Claw Hammer

  Reduce 7 HP damage taken.
• Fire Symbol Guitar
• White Metal Hammer
• Mother's Hug (II)

  Recover 150 HP and 3% HP at the start of every turn.
• S9 Warring Empire Guarding Bow

  An ancient enchanted bow with great range used in warfare. Increases accuracy by 10%. Restore 100 HP every turn.
• Gold Wand

  Ignore 5% targets dodge.
• Enternal Love Scroll

  Increase 5% Combustion chance and reduce 1% damage taken.
• Scroll: Posion Attack
• Christmas Deer

  Increase critical chance 2% and critical damage 6%.
• Taoist Spirit Stone

  Increases Max. HP by 3% and Max. CP by 5%. Increase purify chance by 1%.
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• Fighting spirit Taiko
• Tail of Hachibi

  Forged with chakra of the legendary tailed beast, Hachibi. Increase critical chance by 15% but reduce max. HP by 20%.
• Karasu Miya Falcon

  Increase dodge rate by 6%.
• Bear of Affection

  Increase dodge rate by 3% and ignore target dodge by 3%.
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%.
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• Tai Chi Gold Gourd

  Restores HP by 4%. Increase healing power of scrolls by 500%. Reduce target 3% CP on every weapon attack.
• S63 Stormbringer

  Increases dodge rate by 5%. Has 50% chance to absorb 2% HP of enemy who attack you.
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• Holy Wings

  Increase accuracy by 4% and dodge rate by 3%.
• S12 Golden Bujin Jitte

  Increase dodge rate by 10%.
• Charming Aura (Pink)

  2012 Valentines day limited aura, reduce damage 2%.
• Leopard Cat Tail
• Red Shuriken Skis
• Screw Pattern Skis
• Chakra Kanawa

  Recover CP after HP reduction. (Amount: 20% of HP reduction)