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 :

• Blizzard

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

  Increase 3% attack damage and ignore 3% targets dodge.
• Twins Sakura

  Ignore 5% targets dodge.
• Death Wooden Coffin
• Screw Pattern Skis
• Great Stinger

  Reduces damage taken by 3%. Converts 9% of damage taken into CP.
• Ice Cystal Raijinco
• S68 Supreme Faerie Wings

  Recover 20% extra CP when charge. Has 10% chance to convert damage taken to HP positively.
• Python Scales Raijinco
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• Sealing the soul barrel
• Ninja Bag

  Increase healing power of scrolls by 20%.
• Umiyuki Painted Wood

  Reduce 24 HP damage taken.
• FIFA Whistle

  Recover 100 CP at the start of every turn and reduces damage taken by 80.
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• Love Missile

  Additional 60 HP damage upon all attack.
• Assault Kite

  Recover 100 HP and 80 CP at the start of every turn.
• Love Ribbon

  Additional 40 HP damage upon all attack.
• Crystal Ice Mirror

  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• Thorn hammer
• Purple Mixing Yellow Umbrella
• Great Wooden Hammer (3 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Hanagara Dama

  Increase max. CP by 6%
• Sakura wah

  Restores HP by 3% and CP by 99 each turn.
• 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.
• Spartan Shield

  Restore 100 HP every turn. Reduce damage taken by 5%.
• War Flag: Furinkazan