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 :

• S50 Blood Shade Magatama

  Created with blood and molten lava, the blood shade magatama consumes the life force of anyone with malicious intent. Has a 8% chance to absorb 10% of the attackers max HP and 8% chance to convert any damage taken to HP.
• MegaJingleBell

  A glorious Christmas artifact which can be used in battle. Ignores 5% of enemys dodge rate. Recovers 2% of users max HP every turn.
• Water Symbol Guitar
• Native Drum

  5% chance to convert damage taken to HP positively.
• S67 Omni Cloud

  Increase accuracy by 6% and dodge rate by 5%.
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• Mousetrap

  15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Charmed Heart

  Theres no escaping love. Increases accuracy by 5%. Adds 40 damage in all of your attacks.
• Dark World Hammer
• Shoguns Badge Gourd

  Increase Max. HP & CP by 3%
• S9 Warring Empire Bulwark

  A strong and sturdy shield. Reduces damage taken by 35% but reduces the user's agility by 15.
• 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
• Soul of Egg Hunting Beast

  2012 Egg Hunting Event
• Carrot Launcher

  Increase agility by 1. (Easter 2011 Limited Edition)
• Scroll: Rikugo
• Ninjas Stocking

  Increase 5% Combustion chance and attack damage by 3%.
• Twins Sakura

  Ignore 5% targets dodge.
• Four-Point Shuriken
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Yatai Lantern
• 2011 Fortune Lantern

  Ninja Saga 2nd Anniversary Carnival!
• Scroll: Kinjutsu I
• S58 Scroll of Shadows

  Increases damage by 6% and dodge rate by 5%.
• Puppet: Hakuki (7 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Newbie backpack (Red)

  Double mission XP reward in level 1 to level 10.
• S2 Scroll Capsule

  Increase attack damage by 8%. Recover 7% cp after dealing damage.