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 :

• Flag: Dragon Symbol
• Dark Blade

  Increase 2% critical rate and ignore 2% of targets dodge.
• S51 Enchanted Winged Carapace

  Increases accuracy by 3%. Recover 4% HP at the start of every turn.
• Hanami Dango

  Reduces damage received by 7%. Restore 85 HP every turn.
• Puppet: Hakuki (3 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Genin backpack (Blue)

  Double mission XP reward in level 11 to level 20.
• 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.
• Ocean Ring

  Increase 1% accuracy.
  Additional 2 HP damage upon all attack.
• Chakra Message Stick
• Poor Bag

  7% chance to convert damage taken to HP positively. Reduce damage taken by 5%.
• Ichimoku Gourd
• Chromaflake

  Increases damage by 5% and dodge rate by 3%.
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• Merlins Magical book

  Increases attack damage 5%
• S55 Mirror of Fantasy

  Increases damage by 6% and accuracy by 5%. Has a 7% chance to convert any damage taken to HP.
• Fairy Fishing Rod

  Each turn recover 3% HP and 100 CP
• Folk Folding Fan
• Swire Raijinco
• Mischievous Candy

  Increase accuracy by 3%. Increase healing power of scrolls by 50%.
• S9 Ancient Akazonke Gunbai

  Increase critical rate and accuracy by 4%. But reduce Max.HP by 2%.
• Water Symbol Guitar
• Mini Evil Wing

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

  Reduce damage taken by 140. Recover 5% extra CP when charge.
• Prestige Purple Dragon

  Increase attack damage by 5%. Recover 100 HP at the start of every turn.
• Heian-kyo Shamisen
• Dark World Hammer
• Smart Phone