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 :

• Carnival Fan

  Dance with the Fan during Ninja Saga Anniversary Carnival! Increase all attack damage by 3%.
• Ink Cloud

  Additional 40 HP damage upon all attack.
• Shigu Twin Blades
• GM Goldfish

  GM Goldfish
• S13 Slaughter Giant Axe

  Increase max.HP by 20% but reduce max. CP by 35%.
• Native Drum

  5% chance to convert damage taken to HP positively.
• Ferret Tail
• Ichimoku Gourd
• Steel Frame Tail
• Christmas Treasure Bag

  Increase agility by 1.
• S14 Yabusa Knife

  Increases 4% attack damage and ignore 4% of targets dodge.
• S12 Golden Bujin Jitte

  Increase dodge rate by 10%.
• Ninjas Stocking

  Increase 5% Combustion chance and attack damage by 3%.
• Hidden Green Umbrella
• S56 Curse Brush

  A legendary Ink Brush that has the ability to materialize drawings. Increase critical rate by 5% and accuracy by 6%.
• S11 Wood Spirit's Bow

  Increase critical chance 13%.
• Childhood Memories

  Mothers Day 2011 Limited Edition
• Scroll: Grassland
• Beast Mace
• Orange Koi
• Sakura Fan

  Recover 20 HP and 150 CP at the start of every turn.
• First-Aid Kit

  100% of the purchase price will be donated to Japan earthquake relief.
• Deadwood Pipa
• Civet Cat Tail
• S45 Oblivion Ward

  Increases Max. HP by 3% and Max. CP by 6%.
• Paper Umbrella

  Increase dodge by 3%. Reduce damage taken by 80.
• S44 Earth Caller

  Increases attack damage by 4% and max HP by 5%.