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 :

• 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.
• Three-stringed Lute Guitar
• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• Scroll: Messenger (3 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• Purple Mixing Yellow Umbrella
• Bronze Torch of Zeus

  Increase mission XP reward by 200
• Mimosa
• Water Energy Skis
• Ancient Shinobi War Decorated

  Additional 60 HP damage upon all attack.
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• S10 Frostguard's Bow

  A magical bow that has a very long range. Reduce target 8% CP on every weapon attack.
• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• Folk Folding Fan
• S36 Wind Chakra Magatama

  Increase accuracy by 3% and dodge rate by 3%.
• Assault Kite

  Recover 100 HP and 80 CP at the start of every turn.
• Sweet Treat

  Increase critical chance by 2% and dodge rate by 3%.
• S47 Kami's Blessing

  Increase critical chance 6% and critical damage 10%.
• Blizzard

  Increases users agility by 1. Has 7% chance to convert damage taken into HP.
• Blue Crystal Wings

  Recover 15% extra CP when charge.
• Screw Pattern Skis
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• Scroll: Taiin
• S12 Golden Bujin Ax

  Increase attack damage by 20% but increase damage taken by 12%.
• Ninja Bunny Doll

  Increase 2% damage and ignore 3% targets dodge.
• Flag: Dragon Symbol
• S1 Angelic Silverware

  Increase dodge rate by 5%. Reduce damage taken by 9%.
• Champion Cup!

  Ultimate prize for Champions.