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 :

• S62 Black Steel Swords

  Restores 5% of users max HP.
• Great Stinger

  Reduces damage taken by 3%. Converts 9% of damage taken into CP.
• S26 Bashosen

  Increase 10% Combustion chance.
• S49 Serpent Dragon Chakram

  An exceptional weapon crafted with serpent and dragon remains. Increases agility by 1 and accuracy by 7%.
• Christmas Treasure Bag

  Increase agility by 1.
• S63 Stormbringer

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

  Increase Combustion chance by 10%.(Minimum requirement of 1 Attribute Point in Fire to activate combustion effect). Has 10% chance to absorb 2% HP of enemy who attack you.
• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• Straw Hat

  Increase dodge rate by 3%.
• Moai Flagon

  Increase Max. HP by 3%. Reduce damage taken by 100.
• Taurus Wand

  A necromantic wand with a figurehead of a bull. Used by necromancers in ancient times to amplify their power. Recover 100 HP at the start of every turn. Has a 12% chance to absorb 3% HP of enemies who attack you.
• Sengoku Flag

  Increases damage by 4%. Each turn recover 120 HP.
• Apple Candy

  Increases damage by 5%. Has 3% chance to convert damage taken to HP positively.
• S19 Magatama Soul Barrel

  Increase 4% critical rate and ignore 4% targets dodge.
• Shield of Holy Beast

  Reduce 5% damage taken. 6% chance to convert damage taken to HP positively.
• Native Horn

  Increase max. CP by 3%, Recover 1% HP with every Charge.
• S41 Dragon Gunnery

  Increase 25% Combustion chance, Ignore enemys dodge rate by 5%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• S54 Ebony Nunchaku

  Increases damage by 7%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• Clear Cross

  Increase 3% purify chance. Each turn recover 150 HP and 150 CP.
• S71 Magic Clock

  Increases Max. CP by 10%. Recover CP after HP reduction. (Amount: 20% of HP reduction)
• 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.
• Mirror of Shamisen
• Stuff Bunny

  Increase Max. HP by 2% and Max. CP by 4%.
• S18 Evil Spirit Shield

  Reduce 14% damage taken.
• Patriot Aegis

  A mythical shield that can block even the most vicious attacks. Increases max HP by 3%. Has a 60% chance to recover 5% of maximum HP and reduces damage taken by 75.
• Mischievous Candy

  Increase accuracy by 3%. Increase healing power of scrolls by 50%.