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 :

• Water Shark Skis
• Extra Large Presents Bag

  A large present bag, but nobody knows what it contains.
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Great Wooden Hammer (7 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Lovely Santa Bag

  A bag that resembles Santa Claus, it emanates faint revitalizing aura. Restores 140 HP and 30 CP at the start of every turn.
• Wind Storm Raijinco
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• Swordfish
• Twins Sakura

  Ignore 5% targets dodge.
• Matsuyama Fan

  Ignore enemys dodge rate by 6%.
• Smoothbore Musket

  Increase 10% damage.
  Reduce 3% damage taken.
• Santa Gift Bag

  Reduce damage taken by 30.
• Sakura Rain Battle Umbrella
• Lucky Chess

  Has 5% chance to freeze enemy who attacks user (3 turn). Frozen target cannot move but damage taken is reduced by 80%. Each turn recover 100 HP and 100 CP.
• Orange Kikyo Skis
• Christmas Deer

  Increase critical chance 2% and critical damage 6%.
• Apple Candy

  Increases damage by 5%. Has 3% chance to convert damage taken to HP positively.
• S76 Buckler and Sword

  Increase max.HP by 12% but reduce max. CP by 2%.
• Sakura Fan

  Recover 20 HP and 150 CP at the start of every turn.
• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• Black Koi
• Tai Chi Gold Gourd

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

  Recover self 2% HP, reduce 3% damage taken.
• Silver Torch of Zeus

  Increase mission gold reward by 300.
• Death Wooden Coffin
• Falcon
• S5 The Guider

  Increase purify chance by 7%. Recover 8% HP when purify. Recovers 4% of the user's max HP.