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 :

• S21 Rokulin Gunbai

  Ignore enemys dodge rate by 8%.
• Carrot Time Bomb

  Has 8% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%. Has 5% chance to convert damage taken to HP positively.
• New Year Kadomatsu

  Recover 100 HP and 100 CP at the start of every turn.
• S74 Burning Wings

  Increases attack damage by 4% and Combustion chance by 25%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Mini Goldfish
• Luckey windmill

  Each turn recover 120 HP and 120 CP.
• Red Shell
• Banana Back Item

  Banana Back Item
• Fathers Treasure

  2014 Fathers Day special back item. Doubles the TP reward from TP missions.
• S17 Scorching Sun Lantern

  Recover 10% cp after dealing damage.
• S83 Four Wings

  Increase dodge rate 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.
• S54 Ebony Nunchaku

  Increases damage by 7%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• 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%.
• Carnival Taiko

  Play the Taiko in Ninja Saga Anniversary Carnival! Recover 5 HP and CP at the start of every turn.
• S31 Yabusa Dual Head Spear

  Increase 4% damage and 4% critical rate.
• Scroll: Guren
• S9 Akazonke Gunbai

  Increase 4% critical rate and ignore 4% targets dodge.
• S23 Meschiken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Ishiyama Lantern

  Reduce damage taken by 49.
• Aries Taiko

  A magical taiko used in celebrations during the Aries zodiac months. Recovers 50 HP every turn and reduces damage taken by 25.
• Cancer Assegai

  Increases critical rate by 4%. Reduce damage taken by 3%.
• Chakra Kanawa

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Water Shark Skis
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• Hide Guitar
• Santa Gift Bag

  Reduce damage taken by 30.