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 :

• Shinobi Curse Battle Umbrella
• Sagittarius Hunting Set

  Increases dodge rate by 4%. Additional 80 HP damage on all attacks.
• 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.
• Christmas Pudding

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

  Ignore enemys dodge rate by 4% and increase 3% dodge rate.
• Smoothbore Musket

  Increase 10% damage.
  Reduce 3% damage taken.
• S45 Oblivion Ward

  Increases Max. HP by 3% and Max. CP by 6%.
• Radish Launcher

  It will fly you to the moon! (Easter 2011 Limited Edition)
• Leopard Cat Tail
• Yatai Lantern
• Carrot Time Bomb

  Has 8% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%. Has 5% chance to convert damage taken to HP positively.
• Crystal Ice Mirror

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

  Increases damage by 4% and dodge rate by 1%.
• Father's Heart

  Reduce damage taken by 6%.
• Ninja Bunny Doll

  Increase 2% damage and ignore 3% targets dodge.
• Toxic Village Poison Potion
• S10 Ancient Kikyo Umbrella

  6% chance to convert damage taken into health. But reduce Max.CP by 2%.
• S43 Extreme Lotus

  The back item contains 30% chance to absorb 3% HP of enemy which makes attack on you.
• Chakra Kanawa

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• S57 Magatama Gunbai

  Increases dodge rate by 5% and restores 4% of users max HP every turn.
• Matsuyama Fan

  Ignore enemys dodge rate by 6%.
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.
• Thanksgiving Balloons

  Increase max. HP by 2%.
• Raccoon Tail
• Scroll: Sun of Campaign
• Spirit Flag

  An inspiring banner that boosts the holders morale. Increase critical chance and dodge rate by 3%.