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 :

• Lovely Santa Bag

  A bag that resembles Santa Claus, it emanates faint revitalizing aura. Restores 140 HP and 30 CP at the start of every turn.
• Falcon
• Shishimai Back

  Restores 3% of users max HP.Has 4% chance to convert damage taken to HP positively.
• Red Shuriken Skis
• Carnival Fan

  Dance with the Fan during Ninja Saga Anniversary Carnival! Increase all attack damage by 3%.
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• Scroll: Tenku
• S13 Kishu Twin Blades

  Increase accuracy by 8%
• Tailed Beast Chakra Crystal

  Increase 3% damage.
  Reduce 3% damage taken.
  Recover 2% HP each turn start.
• Minotaurs Horn

  Recover 350 HP at the start of every turn. Has 15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Large Wooden Hammer
• Pirate Skull Flag

  Increase 6% purify chance. Reduce damage taken by 5%.
• S5 Possessed Koto

  Increase purify chance by 7%. Reduce jutsu CP consumption for 10%. Has 15% Chance to stun target when attack with weapon for 1 turn.
• S23 Meschiken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Champion Cup!

  Ultimate prize for Champions.
• Deadwood Pipa
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• Toxic Village Poison Potion
• Training Dummy

  Increases accuracy by 5% and dodge rate by 4%.
• Angel Wings

  Increase 3% attack damage and ignore 3% targets dodge.
• Crystal Ice Mirror

  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• S5 The Guider

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

  A necromantic wand with a figurehead of a bull. Used by necromancers in ancient times to amplify their power. Recover 100 HP at the start of every turn. Has a 12% chance to absorb 3% HP of enemies who attack you.
• S25 Musha Pipa

  Increase 4% critical rate and ignore 4% targets dodge.
• Holiday Doll

  Expecting Santa in every year! Critical and dodge rate increase 3%.
• Tail of Hachibi

  Forged with chakra of the legendary tailed beast, Hachibi. Increase critical chance by 15% but reduce max. HP by 20%.
• S52 Gold Dragon Scroll

  Reduce damage taken by 7%. Ignore targets dodge rate by 5%.