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 :

• Dark Cry Raijinco
• Ink Cloud

  Additional 40 HP damage upon all attack.
• Hide Guitar
• Folding Paper Fan
• Harvest Treasure Bag

  Reduce damage taken by 140. Recover 5% extra CP when charge.
• Blue Crystal Wings

  Recover 15% extra CP when charge.
• Ninjas Stocking

  Increase 5% Combustion chance and attack damage by 3%.
• S46 Holy Drum

  Reduce damage taken by 4%. Increase chance to restrict enemy for 1 turn by 20%. Targets with “Restriction” 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.
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Raccoon Tail
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.
• S50 Blood Shade Magatama

  Created with blood and molten lava, the blood shade magatama consumes the life force of anyone with malicious intent. Has a 8% chance to absorb 10% of the attackers max HP and 8% chance to convert any damage taken to HP.
• S2 Demons erosion

  Recovers 4% of the users max HP every turn. Additional 100 damage on all attacks.
• 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)
• Triple Taiko

  Increases Max. HP by 4% and healing power of scrolls by 100%.
• S13 Kishu Twin Blades

  Increase accuracy by 8%
• Ancient Pipe

  5% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Successor Fan

  Restores HP & CP by 2%. Has 7% chance to freeze enemy who attacks user (2 turn). Frozen target cannot move but damage taken is reduced by 80%.
• S56 Curse Brush

  A legendary Ink Brush that has the ability to materialize drawings. Increase critical rate by 5% and accuracy by 6%.
• S28 Orochi Statue

  Increase attack damage by 4%, and recover HP by 1%.
• Bat Back Item

  Back item design with reference from Halloween - Bats. Increase 5% dodge rate and decrease damage 5% at the same time.
• Smoothbore Musket

  Increase 10% damage.
  Reduce 3% damage taken.
• Ichimoku Gourd
• 4th Anniversary Back Item

  Ninja Saga 4th Anniversary edition! Recover 50 HP and 150 CP at the start of every turn.
• Sealed Wood

  A back item which lost the original effectiveness.
• Great Wooden Hammer

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.