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 :

• S2 Scroll Capsule

  Increase attack damage by 8%. Recover 7% cp after dealing damage.
• S9 Akazonke Gunbai

  Increase 4% critical rate and ignore 4% targets dodge.
• Stuff Bunny

  Increase Max. HP by 2% and Max. CP by 4%.
• Scroll: Double Head
• Evil Way Lute

  Has a 50% chance to recover 5% of maximum HP. Has 10% chance to absorb 3% HP
• S12 Ancient Blood Evil Gourd

  Increase max. HP by 5%. But reduce Max.CP by 1%.
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.
• Hide Guitar
• Christmas Pudding

  Recover 200 HP and 200 CP at the start of every turn but reduce agility by 10.
• Kettle
• Tail of Jyubi

  Forged with chakra of the legendary tailed beast, Jyubi. Increase attack damage by 15% but reduce max. CP by 30%.
• S9 Warring Empire Bulwark

  A strong and sturdy shield. Reduces damage taken by 35% but reduces the user's agility by 15.
• 2011 Carnival Jiegu

  Ninja Saga 2nd Anniversary Carnival! Each turn recover 100 HP and 100 CP.
• Sack of Hearts

  Cupids sack of hearts. Recovers 3% HP every turn. Has 5% chance to convert any damage to HP.
• S63 Stormbringer

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

  Increase 3% damage made, recover self 2% HP each turn.
• S18 Kamimachi Lantern

  Increase 4% critical rate and recover HP by 1%.
• Ninja Bag

  Increase healing power of scrolls by 20%.
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Raijin Raijinco
• Santa Gift Bag

  Reduce damage taken by 30.
• Christmas Chimney

  4% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Mimosa
• S5 The Guider

  Increase purify chance by 7%. Recover 8% HP when purify. Recovers 4% of the user's max HP.
• Brilliant Stock Pot

  Increase max. HP by 8% and purify chance by 2% but reduce max. CP by 8%.
• 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)