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 :

• Little Shikigami

  Increases accuracy by 5%. Adds 80 damage in all of your attacks.
• Gunbai: World Peace
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.
• Scroll: Yinyang Seal
• S81 Wheel of Glory

  Reduce damage taken by 200. Increase Combustion chance by 15%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Orange Koi
• Emblem backpack (Yellow)

  Double mission XP reward in level 1 to level 20.
• Training Dummy

  Increases accuracy by 5% and dodge rate by 4%.
• S10 Frostguard's Shield

  Shield of the valiant warrior Tundra. Increase agility by 2. Has 17% Chance to stun target when attack with weapon for 1 turn.
• Carp Flag
• Apple Candy

  Increases damage by 5%. Has 3% chance to convert damage taken to HP positively.
• S55 Mirror of Fantasy

  Increases damage by 6% and accuracy by 5%. Has a 7% chance to convert any damage taken to HP.
• Kettle
• Shadow Twin Blades
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• Rose Bouquet

  Recover CP by extra 5% per charge
• Ninja Postman Bag

  Increase healing power of scrolls by 50%.
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• Sengoku Flag

  Increases damage by 4%. Each turn recover 120 HP.
• Ame no Kemagatama

  Increase 3% accuracy.
  Additional 30 HP damage upon all attack.
• GM Goldfish

  GM Goldfish
• Leos Recurve Bow

  Increases damage by 4% and dodge rate by 1%.
• GM Phone

  GM Phone
• Bell of Beast

  Recover HP by 3%. 15% chance to absorb 3% HP of enemy who attack you.
• Shield of Holy Beast

  Reduce 5% damage taken. 6% chance to convert damage taken to HP positively.
• S25 Musha Pipa

  Increase 4% critical rate and ignore 4% targets dodge.