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 :

• Wind Storm Raijinco
• Scroll: Terminated Rock
• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• Tail of Capricorn

  Increases dodge rate by 4%. Recovers 3% HP with every charge.
• Genin backpack (Blue)

  Double mission XP reward in level 11 to level 20.
• Ninja Postman Bag

  Increase healing power of scrolls by 50%.
• S26 Bashosen

  Increase 10% Combustion chance.
• S63 Stormbringer

  Increases dodge rate by 5%. Has 50% chance to absorb 2% HP of enemy who attack you.
• Force of Taowu

  Increases Max. HP by 4% and Max. CP by 4%.
• Scroll: Double Head
• Poor Bag

  7% chance to convert damage taken to HP positively. Reduce damage taken by 5%.
• S14 Profound Tentacles

  35% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• S83 Four Wings

  Increase dodge rate by 8%.
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Osuzu Shinsen

  Ninja Saga 2nd Anniversary Carnival! Increase all attack damage by 5%.
• S69 Skull Cloak

  Increases Max. HP by 4%. Restores HP by 4%. Increase attack damage by 6%.
• S29 Yanki Protective Magatama

  Increase accuracy by 8%
• Black Metal Hammer
• Shishimai Back

  Restores 3% of users max HP.Has 4% chance to convert damage taken to HP positively.
• Neptunes Healing

  Amazing power from Neptune. 3% chance to convert damage taken to HP positively and recover 3% HP at the start of every turn.
• Grand Light Gourd

  Increase 3% damage
• S10 Kikyo Umbrella

  6% chance to convert damage taken to HP positively.
• Love Ribbon

  Additional 40 HP damage upon all attack.
• Leopard Cat Tail
• Newbie backpack (Red)

  Double mission XP reward in level 1 to level 10.
• Hanami Dango

  Reduces damage received by 7%. Restore 85 HP every turn.
• S18 Kamimachi Lantern

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