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 :

• S8 Scroll of Golden Snake

  Increase all attack damage by 4%. Decrease damage taken by 4%.
• Christmas Wreath

  Increase agility by 1 and Max HP by 1%.
• Christmas Bag

  Reduce damage taken by 10.
• Master Scroll

  Restores HP & CP by 3%.
• Christmas Chimney

  4% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Charming Aura (Black)

  2012 Valentines day limited aura, increase critical chance 2%.
• Folk Folding Fan
• S62 Black Steel Swords

  Restores 5% of users max HP.
• Blue Pattern Skis
• 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.
• Hidden Green Umbrella
• S15 Seitenken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• S15 Frozen Large Sword

  Increase 7% purify chance.
• S9 Warring Empire Bulwark

  A strong and sturdy shield. Reduces damage taken by 35% but reduces the user's agility by 15.
• Gunbai: Gyoji
• Musashi Twin Blades
• Radish Launcher

  It will fly you to the moon! (Easter 2011 Limited Edition)
• Wine Gourd
• S54 Ebony Nunchaku

  Increases damage by 7%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Carnival Fan

  Dance with the Fan during Ninja Saga Anniversary Carnival! Increase all attack damage by 3%.
• Fairy Wings

  Fairy wings that owned by a fairy
• Cornucopia

  Increase healing power of scrolls by 100%. Has 6% chance to convert damage taken to HP positively.
• Jaws

  Ignore 4% targets dodge.
• S8 Sign of Corruption

  Wings with an ominous aura. Increases agility by 3.
• S47 Kami's Blessing

  Increase critical chance 6% and critical damage 10%.
• Blessed Kitty

  Bless on his master everyday, which increase 3% damage. Heal 1% HP in every turn.
• Christmas Pudding

  Recover 200 HP and 200 CP at the start of every turn but reduce agility by 10.