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 :

• S14 Ancient Yabusa Knife

  Increases attack damage 4% and ignore 3% of targets dodge.
• Golden-bound Cudgel
• S2 Scroll Capsule

  Increase attack damage by 8%. Recover 7% cp after dealing damage.
• Paper Windmill

  Additional 20 HP damage upon all attack.
• Dark Evil Sickle

  Exclusive Halloween item - the devils sickle that has 10% chance to absorb 1% HP of enemy who attack you.
• Ishiyama Lantern

  Reduce damage taken by 49.
• Bat Back Item

  Back item design with reference from Halloween - Bats. Increase 5% dodge rate and decrease damage 5% at the same time.
• S15 Frozen Large Sword

  Increase 7% purify chance.
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• Justice and Freedom

  Flag of the United States of America which symbolizes freedom and liberty. Recover 3% HP with every charge. Increases critical rate by 3%. Reduces damage taken by 50.
• Hanami Dango

  Reduces damage received by 7%. Restore 85 HP every turn.
• Flag of the Burning Legion

  Reduce 3% damage taken and 12% chance to absorb 2% HP of enemy who attack you.
• S67 Omni Cloud

  Increase accuracy by 6% and dodge rate by 5%.
• Horror Scarecrow

  Increase attack damage by 5%. Reduce damage taken by 150.
• Large Wooden Hammer
• Christmas Wreath

  Increase agility by 1 and Max HP by 1%.
• S11 Wood Spirit's Bow

  Increase critical chance 13%.
• Tail of Kyubi

  Forged with chakra of the legendary tailed beast, Kyubi. 100% immune to Burn effect and increase 3% Combustion chance.
• S71 Magic Clock

  Increases Max. CP by 10%. Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Scroll: Double Head
• S15 Ancient Seitenken

  Recover CP after HP reduction. (Amount: 16% of HP reduction)
• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• Beast Mace
• Death Wooden Coffin
• Blue Bird Wings
• S18 Kamimachi Lantern

  Increase 4% critical rate and recover HP by 1%.
• Banana Back Item

  Banana Back Item