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 :

• Tail of Kyubi

  Forged with chakra of the legendary tailed beast, Kyubi. 100% immune to Burn effect and increase 3% Combustion chance.
• Dark Evil Sickle

  Exclusive Halloween item - the devils sickle that has 10% chance to absorb 1% HP of enemy who attack you.
• Great Wooden Hammer

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Father's Heart (II)

  Reduce damage taken by 7%. Reduce damage taken by 150.
• S2 Solar Aura

  Increase agility by 3 and accuracy by 7% .
• Moai Flagon

  Increase Max. HP by 3%. Reduce damage taken by 100.
• Ink Cloud

  Additional 40 HP damage upon all attack.
• Angel Wings

  Increase 3% attack damage and ignore 3% targets dodge.
• Ronin Straw Hat

  Additional 100 HP damage upon all attack.
• Decorate Battle Umbrella
• S14 Yabusa Knife

  Increases 4% attack damage and ignore 4% of targets dodge.
• S18 Evil Spirit Shield

  Reduce 14% damage taken.
• S8 Sign of Corruption

  Wings with an ominous aura. Increases agility by 3.
• Water Shark Skis
• Bronze Torch of Zeus

  Increase mission XP reward by 200
• Taurus Wand

  A necromantic wand with a figurehead of a bull. Used by necromancers in ancient times to amplify their power. Recover 100 HP at the start of every turn. Has a 12% chance to absorb 3% HP of enemies who attack you.
• Scroll: Posion Attack
• Scroll: Terminated Rock
• S9 Ancient Akazonke Gunbai

  Increase critical rate and accuracy by 4%. But reduce Max.HP by 2%.
• S10 Ancient Kikyo Umbrella

  6% chance to convert damage taken into health. But reduce Max.CP by 2%.
• S8 Ancient Scroll of Golden Snake

  Increase all attack damage by 4%, and Decrease damage taken by 4%. But reduce critical chance by 1%.
• Engagement Ring

  Additional 20 HP damage upon all attack.
• Scroll: Kinjutsu I
• Hanami Lantern

  2011 Hanami Festival - Shine! Reduce damage taken by 15.
• S65 Transcendent Flame Wings

  Remnants of a powerful fire spirit. Increases attack damage by 7% and increase 20% Combustion chance. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Light Cry Raijinco
• FIFA Whistle

  Recover 100 CP at the start of every turn and reduces damage taken by 80.