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 :

• Luckey windmill

  Each turn recover 120 HP and 120 CP.
• Scroll: Kinjutsu I
• GM Phone

  GM Phone
• S5 The Guider

  Increase purify chance by 7%. Recover 8% HP when purify. Recovers 4% of the user's max HP.
• 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.
• Thorn hammer
• S69 Skull Cloak

  Increases Max. HP by 4%. Restores HP by 4%. Increase attack damage by 6%.
• Scroll: Messenger (7 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• Magical Wreath

  Recover HP by 2% and reduce 4% damage taken.
• Ancient Pipe

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

  Has a 50% chance to recover 5% of maximum HP. Has 10% chance to absorb 3% HP
• Jingle Bell

  Reduce 2% damage taken. Recover 3% HP at the start of every turn.
• Lucky Chess

  Has 5% chance to freeze enemy who attacks user (3 turn). Frozen target cannot move but damage taken is reduced by 80%. Each turn recover 100 HP and 100 CP.
• Red Ukiyo-e Kite

  4% chance to convert damage taken to HP positively and increase max. HP by 2%.
• S13 Slaughter Giant Axe

  Increase max.HP by 20% but reduce max. CP by 35%.
• S9 Warring Empire Bulwark

  A strong and sturdy shield. Reduces damage taken by 35% but reduces the user's agility by 15.
• Puppet: Hakuki

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• Master Scroll

  Restores HP & CP by 3%.
• Great Wooden Hammer (3 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Smart Phone
• S1 Angelic Silverware

  Increase dodge rate by 5%. Reduce damage taken by 9%.
• Dark Plate Twin Blades
• S78 Wandering Soul

  Recover CP after HP reduction. (Amount: 15% of HP reduction) Recover 15% extra CP when charge.
• Sagittarius Hunting Set

  Increases dodge rate by 4%. Additional 80 HP damage on all attacks.
• Scroll: Genbu
• S14 Profound Pincers

  20% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.