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 :

• Umiyuki Painted Wood

  Reduce 24 HP damage taken.
• Ink Cloud

  Additional 40 HP damage upon all attack.
• Shield of Holy Beast

  Reduce 5% damage taken. 6% chance to convert damage taken to HP positively.
• S3 Energetical Can

  Increase attack damage by 10% and Combustion chance by 18%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Scroll: Double Head
• War Flag: Furinkazan
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• Sakura wah

  Restores HP by 3% and CP by 99 each turn.
• Water Shark Skis
• Gummy Bear

  Restores CP by 2%. Reduce damage taken by 100.
• Scroll: Fire and Earth
• Crystal Ice Mirror

  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• Clouds And Mist Raijinco
• Christmas Bag

  Reduce damage taken by 10.
• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• Griffin Thunderball

  Increases critical rate by 3% and dodge rate by 3%.
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%.
• Celestial Wood Raijinco
• Vertical Light

  Reduce 15 HP damage taken.
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.
• Ishiyama Lantern

  Reduce damage taken by 49.
• Hanami Dango

  Reduces damage received by 7%. Restore 85 HP every turn.
• Egg Hunter Basket

  Increase 6% accuracy. (Easter 2011 Limited Edition)
• S75 Trifecta Swords

  It gives off a strange feeling of vigor. Restores CP by 3%. Increases max CP by 7%.
• S1 Helianthus

  Restores HP & CP by 5%. Increase purify chance by 5%.
• Beast Mace
• Force of Taowu

  Increases Max. HP by 4% and Max. CP by 4%.