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 :

• Bell of Fortune

  6% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Swordfish
• Soul Capturing Hammer

  Recover self 2% HP, reduce 3% damage taken.
• Mirror of Thousand Hands
• MegaJingleBell

  A glorious Christmas artifact which can be used in battle. Ignores 5% of enemys dodge rate. Recovers 2% of users max HP every turn.
• Tail of Hachibi

  Forged with chakra of the legendary tailed beast, Hachibi. Increase critical chance by 15% but reduce max. HP by 20%.
• S61 God Dragon Flag

  Increase critical rate by 6%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Fairy Wings

  Fairy wings that owned by a fairy
• Bronze Torch of Zeus

  Increase mission XP reward by 200
• Samurai Painted Wood

  5% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• First-Aid Kit

  100% of the purchase price will be donated to Japan earthquake relief.
• S13 Slaughter Double Sickle

  Recover HP by 1%. 20% chances of using Jutsu without CP.
• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• Deadwood Pipa
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• Three Ring Magatama

  Increase 2% accuracy.
  Additional 12 HP damage upon all attack.
• Mini Octopus
• Grave of the Undying

  Increase purify chance by 8%, but decrease agility by 15.
• Big Cask

  Increase max.HP by 15% but reduce max. CP by 5%.
• Blue Cloud Umbrella

  Ignore 6% targets dodge.
• Water Symbol Guitar
• S15 Frozen Huge Sword

  Recupera 26% extra CP en cada recarga.
• S5 Possessed Koto

  Increase purify chance by 7%. Reduce jutsu CP consumption for 10%. Has 15% Chance to stun target when attack with weapon for 1 turn.
• S15 Frozen Large Sword

  Increase 7% purify chance.
• Black Koi
• Charmed Heart

  Theres no escaping love. Increases accuracy by 5%. Adds 40 damage in all of your attacks.
• Peom Fan

  Reduce 46 HP damage taken.