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 :

• S27 Golden Gourd

  Recover 5% HP with every Charge.
• Peom Fan

  Reduce 46 HP damage taken.
• Assault Kite

  Recover 100 HP and 80 CP at the start of every turn.
• Frost Soul Electric Guitar
• Sanmoku Gourd

  Reduce damage taken by 65.
• S54 Ebony Nunchaku

  Increases damage by 7%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Heart Aura

  Hidden feelings emerges! Recovers 2% of the user's max HP and 100 HP every turn.
• S61 God Dragon Flag

  Increase critical rate by 6%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• War Flag: World Peace
• Fairy Fishing Rod

  Each turn recover 3% HP and 100 CP
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%.
• Jingle Bell

  Reduce 2% damage taken. Recover 3% HP at the start of every turn.
• Grave of the Undying

  Increase purify chance by 8%, but decrease agility by 15.
• Ghost Spider

  Reduce 72 HP damage taken.
• Ancient Pipe

  5% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Civet Cat Tail
• FIFA Whistle

  Recover 100 CP at the start of every turn and reduces damage taken by 80.
• White Metal Hammer
• Hanagara Hagoita

  Increase max. HP by 3%.
• Blizzard

  Increases users agility by 1. Has 7% chance to convert damage taken into HP.
• Hidden Green Umbrella
• Leopard Cat Tail
• Taurus Wand

  A necromantic wand with a figurehead of a bull. Used by necromancers in ancient times to amplify their power. Recover 100 HP at the start of every turn. Has a 12% chance to absorb 3% HP of enemies who attack you.
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.
• S13 Kishu Twin Blades

  Increase accuracy by 8%
• Four-Point Shuriken
• Ocean Ring

  Increase 1% accuracy.
  Additional 2 HP damage upon all attack.