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 :

• Red Shuriken Skis
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%.
• Village Red Lantern
• Bronze Torch of Zeus

  Increase mission XP reward by 200
• Hanami Folding Fan

  2011 Hanami Festival - Usagi! Increase dodge rate and critical rate by 3%.
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.
• Star Dawn Harp

  Increases users agility by 1. Recover CP after HP reduction. (Amount: 10% of HP reduction) Recover HP by 2% when being put on a debuff.
• Universal Backpack

  Increase healing power of scrolls by 100%. Each turn recover 140 HP.
• S33 Book of Fate

  Increase Max. HP & CP by 4%
• Ichimoku Gourd
• Matsuyama Fan

  Ignore enemys dodge rate by 6%.
• Cheerful Snowman

  Increase Max. CP by 20%. Recover 2% HP at the start of every turn. but reduce max. HP by 12%.
• Grand Light Gourd

  Increase 3% damage
• S1 Helianthus

  Restores HP & CP by 5%. Increase purify chance by 5%.
• Python Scales Raijinco
• Ninja Postman Bag

  Increase healing power of scrolls by 50%.
• Hanami Fan

  Ignore 4% targets dodge and increase max. HP by 2%.
• S55 Mirror of Fantasy

  Increases damage by 6% and accuracy by 5%. Has a 7% chance to convert any damage taken to HP.
• Taoist Spirit Stone

  Increases Max. HP by 3% and Max. CP by 5%. Increase purify chance by 1%.
• Triple Taiko

  Increases Max. HP by 4% and healing power of scrolls by 100%.
• Sakura Lucky Bag

  Increase 3% damage, 4% chance to freeze attackers for 1 turn . Frozen target cannot move but damage taken is reduced by 80%
• Flour Stick
• Carnival Taiko

  Play the Taiko in Ninja Saga Anniversary Carnival! Recover 5 HP and CP at the start of every turn.
• Virgos Eternal Wings

  Increases agility by 1. Increases users attack damage by 3%.
• Sweet Treat

  Increase critical chance by 2% and dodge rate by 3%.
• Bell of Fortune

  6% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Scroll: Messenger (7 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.