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 :

• Flag: Dragon Symbol
• Ice Cystal Raijinco
• Great Stinger

  Reduces damage taken by 3%. Converts 9% of damage taken into CP.
• Scroll: Sun of Campaign
• S10 Ancient Kikyo Umbrella

  6% chance to convert damage taken into health. But reduce Max.CP by 2%.
• Blue Wolf Tail
• Flame Blade Raijinco
• Dark Blade

  Increase 2% critical rate and ignore 2% of targets dodge.
• Colorful Moai Egg

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

  Reduce damage taken by 65.
• Nutcracker

  Increases Max. HP by 4% and damage by 3%.
• Soul Capturing Hammer

  Recover self 2% HP, reduce 3% damage taken.
• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• S13 Slaughter Double Sickle

  Recover HP by 1%. 20% chances of using Jutsu without CP.
• Beast Mace
• S38 Genrei Fan

  Increase max.CP by 50% but reduce max. HP by 20%.
• 2011 Carnival Jiegu

  Ninja Saga 2nd Anniversary Carnival! Each turn recover 100 HP and 100 CP.
• Training Dummy

  Increases accuracy by 5% and dodge rate by 4%.
• Mini Goldfish
• Carrot Launcher

  Increase agility by 1. (Easter 2011 Limited Edition)
• S79 Blood Feather

  Has 15% chance to convert damage taken to HP positively.
• S37 Ring of Chakra Flame

  Increase attack damage by 7%.
• S17 Scorching Sun Lantern

  Recover 10% cp after dealing damage.
• First-Aid Kit

  100% of the purchase price will be donated to Japan earthquake relief.
• S10 Frostguard's Shield

  Shield of the valiant warrior Tundra. Increase agility by 2. Has 17% Chance to stun target when attack with weapon for 1 turn.
• 4th Anniversary Back Item

  Ninja Saga 4th Anniversary edition! Recover 50 HP and 150 CP at the start of every turn.
• Puppet: Spider