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 :

• Toxic Mushroom

  Increases damage by 10% but the user takes 200 HP damage every turn.
• Thorn hammer
• Ninja Postman Bag

  Increase healing power of scrolls by 50%.
• S53 Frostfire Soul

  Increases combustion chance by 15%. Has a 10% chance to freeze enemies who attacks the user for 1 turn. Frozen targets cannot act but takes 80% reduced damage.
• S7 Gorgeous Butterfly

  Increase agility by 2. Recover 20% extra CP when charge.
• Mischievous Candy

  Increase accuracy by 3%. Increase healing power of scrolls by 50%.
• 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.
• Aboriginal Hunting Set

  Increase accuracy by 5% and Combustion chance 6%.
• Raijin Raijinco
• S61 God Dragon Flag

  Increase critical rate by 6%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Ninja Snowman

  3% chance to convert damage taken to HP positively.
• Shadow Umbrella
• Bronze Torch of Zeus

  Increase mission XP reward by 200
• Scroll: Flying Phoenix
• Champion Cup!

  Ultimate prize for Champions.
• Umiyuki Painted Wood

  Reduce 24 HP damage taken.
• Falcon
• Genin backpack (Blue)

  Double mission XP reward in level 11 to level 20.
• Python Scales Raijinco
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• Puppet: Spider
• Chakra Magatama

  Increase 2% accuracy.
  Additional 5 HP damage upon all attack.
• Folk Folding Fan
• S17 Scorching Sun Scroll

  Has 30% chance to absorb 1% HP of enemy who attack you.
• S14 Yabusa Knife

  Increases 4% attack damage and ignore 4% of targets dodge.
• Gold Wand

  Ignore 5% targets dodge.
• Civet Cat Tail