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 :

• Businessman Luggage
• Mini Goldfish
• Angel Wings

  Increase 3% attack damage and ignore 3% targets dodge.
• Heian-kyo Shamisen
• Book of Slate

  Decreases Max. HP by 1% and Increase Max. CP by 10%. Increase 3% purify chance.
• Scroll: Grassland
• Knot of Avenger

  20% chance to absorb 2% HP of enemy who attack you. 20% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• 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.
• Master Scroll

  Restores HP & CP by 3%.
• Scroll and Blade

  Has 11% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills. Increase critical rate by 5%. 8% chances of using Jutsu without CP.
• Red Shuriken Skis
• Wood Top
• Tail of Kyubi

  Forged with chakra of the legendary tailed beast, Kyubi. 100% immune to Burn effect and increase 3% Combustion chance.
• Toxic Spider Web

  10% chance to apply Restriction on enemies who attacks the user for 1 turn.
  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• Christmas Trumpet

  Ignore enemys dodge rate by 4% and recover 3% CP with every charge.
• Minotaurs Horn

  Recover 350 HP at the start of every turn. Has 15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• S9 Warring Empire Guarding Bow

  An ancient enchanted bow with great range used in warfare. Increases accuracy by 10%. Restore 100 HP every turn.
• Carnival Fan

  Dance with the Fan during Ninja Saga Anniversary Carnival! Increase all attack damage by 3%.
• S81 Wheel of Glory

  Reduce damage taken by 200. Increase Combustion chance by 15%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• S56 Curse Brush

  A legendary Ink Brush that has the ability to materialize drawings. Increase critical rate by 5% and accuracy by 6%.
• Village Red Lantern
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Sakura Straw Hat

  Recovers 2% of users max HP every turn.
• Scroll: Messenger (7 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• Dark World Hammer
• S31 Yabusa Dual Head Spear

  Increase 4% damage and 4% critical rate.
• Folding Paper Fan