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 :

• Vertical Light

  Reduce 15 HP damage taken.
• Newbie backpack (Red)

  Double mission XP reward in level 1 to level 10.
• Toxic Mushroom

  Increases damage by 10% but the user takes 200 HP damage every turn.
• Tail of Capricorn

  Increases dodge rate by 4%. Recovers 3% HP with every charge.
• S63 Stormbringer

  Increases dodge rate by 5%. Has 50% chance to absorb 2% HP of enemy who attack you.
• Assault Kite

  Recover 100 HP and 80 CP at the start of every turn.
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Ritual Taiko
• Turkey Balloon

  Reduce damage taken by 7%. Recover 10% extra CP when charge.
• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• Paper Umbrella

  Increase dodge by 3%. Reduce damage taken by 80.
• Giant Copper Coins

  Increase Mission gold reward by 30%.(Mission Only)
• S29 Yanki Protective Magatama

  Increase accuracy by 8%
• Rose Bouquet

  Recover CP by extra 5% per charge
• Ishiyama Lantern

  Reduce damage taken by 49.
• S1 Angelic Silverware

  Increase dodge rate by 5%. Reduce damage taken by 9%.
• 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)
• S25 Musha Pipa

  Increase 4% critical rate and ignore 4% targets dodge.
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Bat Back Item

  Back item design with reference from Halloween - Bats. Increase 5% dodge rate and decrease damage 5% at the same time.
• S10 Frostguard's Bow

  A magical bow that has a very long range. Reduce target 8% CP on every weapon attack.
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• Tail Hunter Back Item

  Increase max. HP by 3%.
• S27 Golden Gourd

  Recover 5% HP with every Charge.
• Folding Fan: Shino
• Blue Cloud Umbrella

  Ignore 6% targets dodge.