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 :

• Scroll: Messenger (3 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• S26 Bashosen

  Increase 10% Combustion chance.
• Star Dawn Harp

  Increases users agility by 1. Recover CP after HP reduction. (Amount: 10% of HP reduction) Recover HP by 2% when being put on a debuff.
• Victorious Crown

  Increases accuracy by 4% and recover HP by 3%. Has 13% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Radish Launcher

  It will fly you to the moon! (Easter 2011 Limited Edition)
• 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.
• Jingle Bell

  Reduce 2% damage taken. Recover 3% HP at the start of every turn.
• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• Blessed Kitty

  Bless on his master everyday, which increase 3% damage. Heal 1% HP in every turn.
• Ritual Taiko
• GM Phone

  GM Phone
• Hidden Green Umbrella
• Mini Evil Wing

  Exclusive Halloween item - the devils wings that frighten enemy, and hence reduce their damage done on you by 5%.
• Thorn hammer
• S42 Hanbing Hammer

  8% chance to convert damage taken to HP positively.
• Evil Claw Hammer

  Reduce 7 HP damage taken.
• S76 Buckler and Sword

  Increase max.HP by 12% but reduce max. CP by 2%.
• Scroll: Flying Phoenix
• Heian-kyo Shamisen
• Red Koi
• Shadow Umbrella
• Holiday Doll

  Expecting Santa in every year! Critical and dodge rate increase 3%.
• Stuff Bunny

  Increase Max. HP by 2% and Max. CP by 4%.
• Light of Eternal

  Increase Max.HP 3%. Recover 3% SP at the start of every turn.
• Vampire Cloak

  Increase healing power of scrolls by 100.
• S67 Omni Cloud

  Increase accuracy by 6% and dodge rate by 5%.
• Tail of Jyubi

  Forged with chakra of the legendary tailed beast, Jyubi. Increase attack damage by 15% but reduce max. CP by 30%.