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 :

• Light Cry Raijinco
• Carrot Time Bomb

  Has 8% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%. Has 5% chance to convert damage taken to HP positively.
• Mirror of Shamisen
• Santa Gift Bag

  Reduce damage taken by 30.
• Ishiyama Lantern

  Reduce damage taken by 49.
• Tail of Kyubi

  Forged with chakra of the legendary tailed beast, Kyubi. 100% immune to Burn effect and increase 3% Combustion chance.
• S9 Akazonke Gunbai

  Increase 4% critical rate and ignore 4% targets dodge.
• Sakura Lantern

  Increase Combustion chance by 10%.(Minimum requirement of 1 Attribute Point in Fire to activate combustion effect). Has 10% chance to absorb 2% HP of enemy who attack you.
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.
• Harvest Treasure Bag

  Reduce damage taken by 140. Recover 5% extra CP when charge.
• Chakra Ancestor Flame

  Reduce damage taken by 175. Has 5% chance to convert damage taken to HP positively.
• S39 Spike Hammer

  Increase accuracy by 10% but reduce max. HP by 10%.
• Ninjas Stocking

  Increase 5% Combustion chance and attack damage by 3%.
• Champion Cup!

  Ultimate prize for Champions.
• S38 Genrei Fan

  Increase max.CP by 50% but reduce max. HP by 20%.
• Python Scales Raijinco
• Celestial Wood Raijinco
• S10 Frostguard's Bow

  A magical bow that has a very long range. Reduce target 8% CP on every weapon attack.
• Beast Mace
• Skull Twins

  7% chance to convert damage taken to HP positively and 20% chance to absorb 1% HP of enemy who attack you.
• Jaws

  Ignore 4% targets dodge.
• Yawata Magatama

  Increase 3% accuracy.
  Additional 20 HP damage upon all attack.
• Mini Goldfish
• Blue Cloud Umbrella

  Ignore 6% targets dodge.
• S54 Ebony Nunchaku

  Increases damage by 7%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• First-Aid Kit

  100% of the purchase price will be donated to Japan earthquake relief.
• Zombie Hand

  Increase attack damage by 15%. But each turn reduce 200 HP and 300 CP.