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 :

• S26 Bashosen

  Increase 10% Combustion chance.
• Scroll: Guren
• Tail of Hachibi

  Forged with chakra of the legendary tailed beast, Hachibi. Increase critical chance by 15% but reduce max. HP by 20%.
• Wings of Eternal Eclipse

  Increases critical chance by 3%. Ignores 6% of the targets dodge rate.
• Mischievous Candy

  Increase accuracy by 3%. Increase healing power of scrolls by 50%.
• Sakon Three Blades
• Giant Copper Coins

  Increase Mission gold reward by 30%.(Mission Only)
• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• Heian-kyo Shamisen
• S18 Evil Spirit Wings

  Increase 10% critical rate.
• S51 Enchanted Winged Carapace

  Increases accuracy by 3%. Recover 4% HP at the start of every turn.
• S33 Book of Fate

  Increase Max. HP & CP by 4%
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• Python Scales Raijinco
• Gunbai: Gyoji
• S71 Magic Clock

  Increases Max. CP by 10%. Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Ninja Bag

  Increase healing power of scrolls by 20%.
• Ghost Spider

  Reduce 72 HP damage taken.
• Swire Raijinco
• Large Wooden Hammer
• 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%.
• Three Ring Magatama

  Increase 2% accuracy.
  Additional 12 HP damage upon all attack.
• Sakura Rain Battle Umbrella
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• Universal Backpack

  Increase healing power of scrolls by 100%. Each turn recover 140 HP.