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 :

• S12 Blood Evil Gourd

  Increase max. HP by 5%.
• Roasted Turkey

  Restore 20 HP every turn.
• Straw Hat

  Increase dodge rate by 3%.
• Evil Way Lute

  Has a 50% chance to recover 5% of maximum HP. Has 10% chance to absorb 3% HP
• Scroll: Double Head
• Chakra Message Stick
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• Scroll: Flying Phoenix
• Spiked Blade

  Increases dodge and critical chance by 4%. Recovers 70 HP each turn.
• S36 Wind Chakra Magatama

  Increase accuracy by 3% and dodge rate by 3%.
• Ocean Ring

  Increase 1% accuracy.
  Additional 2 HP damage upon all attack.
• Sakura Rain Battle Umbrella
• Raccoon Tail
• Victorious Crown

  Increases accuracy by 4% and recover HP by 3%. Has 13% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Gunbai: Gyoji
• Purple Dragon umbrella
• Ultimate Taiko

  Recover 120 HP at the start of every turn. Has 15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Black Koi
• 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.
• Mini Evil Wing

  Exclusive Halloween item - the devils wings that frighten enemy, and hence reduce their damage done on you by 5%.
• Lovely Santa Bag

  A bag that resembles Santa Claus, it emanates faint revitalizing aura. Restores 140 HP and 30 CP at the start of every turn.
• S41 Dragon Gunnery

  Increase 25% Combustion chance, Ignore enemys dodge rate by 5%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Dark Cry Raijinco
• S15 Frozen Large Sword

  Increase 7% purify chance.
• S9 Akazonke Gunbai

  Increase 4% critical rate and ignore 4% targets dodge.
• Sealing the soul barrel
• S18 Kamimachi Lantern

  Increase 4% critical rate and recover HP by 1%.