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 :

• S40 Gozen Breeze Back Item

  Recover 7% HP with every Charge.
• Scroll: Fire and Earth
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.
• S9 Ancient Akazonke Gunbai

  Increase critical rate and accuracy by 4%. But reduce Max.HP by 2%.
• Virgos Eternal Wings

  Increases agility by 1. Increases users attack damage by 3%.
• Bell of Beast

  Recover HP by 3%. 15% chance to absorb 3% HP of enemy who attack you.
• Bell of Fortune

  6% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Blue Wolf Tail
• Scroll: Terminated Rock
• Super Rabbit Doll

  Increase damage by 9%.
• Green Koi
• S52 Gold Dragon Scroll

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

  Restores 80 CP at the start of every turn. Converts 8% of damage taken into CP.
• Ultimate Taiko

  Recover 120 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.
• Umiyuki Painted Wood

  Reduce 24 HP damage taken.
• Flag: Dragon Symbol
• Gold Wand

  Ignore 5% targets dodge.
• Yatai Lantern
• Mech of Battle Gear

  Increase critical chance 3% and critical damage 8%.
• Drum of Euphoria

  Recover 3% HP at the start of every turn, and recover 3% HP with every Charge.
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.
• S58 Scroll of Shadows

  Increases damage by 6% and dodge rate by 5%.
• Radish Launcher

  It will fly you to the moon! (Easter 2011 Limited Edition)
• Kettle
• Light of Eternal

  Increase Max.HP 3%. Recover 3% SP at the start of every turn.
• Sakura Fan

  Recover 20 HP and 150 CP at the start of every turn.
• S46 Holy Drum

  Reduce damage taken by 4%. Increase chance to restrict enemy for 1 turn by 20%. Targets with “Restriction” will not be able to use any skills.