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 :

• Spiked Blade

  Increases dodge and critical chance by 4%. Recovers 70 HP each turn.
• S18 Evil Spirit Shield

  Reduce 14% damage taken.
• S1 Angelic Silverware

  Increase dodge rate by 5%. Reduce damage taken by 9%.
• Orange Koi
• Three Ring Magatama

  Increase 2% accuracy.
  Additional 12 HP damage upon all attack.
• S73 Smite Evil Shield

  Has 25% chance to absorb 2% HP of enemy who attack you. 8% chance to convert damage taken to HP positively.
• S15 Frozen Huge Sword

  Recupera 26% extra CP en cada recarga.
• Ramen Shop Lantern
• Scroll: Fire and Earth
• Scroll: Kinjutsu I
• Carrot Launcher

  Increase agility by 1. (Easter 2011 Limited Edition)
• Super Rabbit Doll

  Increase damage by 9%.
• Fire Symbol Guitar
• Four-Point Shuriken
• Mini Evil Wing

  Exclusive Halloween item - the devils wings that frighten enemy, and hence reduce their damage done on you by 5%.
• Yatai Lantern
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• Grand Light Gourd

  Increase 3% damage
• S14 Yabusa Knife

  Increases 4% attack damage and ignore 4% of targets dodge.
• 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%
• Ink Cloud

  Additional 40 HP damage upon all attack.
• Curved Spear
• Golden-bound Cudgel
• Puppet: Spider
• Karasu Miya Falcon

  Increase dodge rate by 6%.
• Great Wooden Hammer (3 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Bat Back Item

  Back item design with reference from Halloween - Bats. Increase 5% dodge rate and decrease damage 5% at the same time.