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 :

• Fathers Treasure

  2014 Fathers Day special back item. Doubles the TP reward from TP missions.
• Charmed Heart

  Theres no escaping love. Increases accuracy by 5%. Adds 40 damage in all of your attacks.
• Sakura wah

  Restores HP by 3% and CP by 99 each turn.
• S15 Ancient Seitenken

  Recover CP after HP reduction. (Amount: 16% of HP reduction)
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• GM back item
• S65 Transcendent Flame Wings

  Remnants of a powerful fire spirit. Increases attack damage by 7% and increase 20% Combustion chance. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• S50 Blood Shade Magatama

  Created with blood and molten lava, the blood shade magatama consumes the life force of anyone with malicious intent. Has a 8% chance to absorb 10% of the attackers max HP and 8% chance to convert any damage taken to HP.
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• Puppet: Spider
• Sack of Hearts

  Cupids sack of hearts. Recovers 3% HP every turn. Has 5% chance to convert any damage to HP.
• S9 Ancient Akazonke Gunbai

  Increase critical rate and accuracy by 4%. But reduce Max.HP by 2%.
• Training Dummy

  Increases accuracy by 5% and dodge rate by 4%.
• S52 Gold Dragon Scroll

  Reduce damage taken by 7%. Ignore targets dodge rate by 5%.
• Beast Mace
• Sanmoku Gourd

  Reduce damage taken by 65.
• Ninja Bunny Doll

  Increase 2% damage and ignore 3% targets dodge.
• Radish Launcher

  It will fly you to the moon! (Easter 2011 Limited Edition)
• Blue Crystal Wings

  Recover 15% extra CP when charge.
• Sakon Three Blades
• S11 Wood Spirit's Shield

  Increase max. HP by 9% and 20% chance to absorb 3% HP of enemy who attack you.
• Egg Hunter Basket

  Increase 6% accuracy. (Easter 2011 Limited Edition)
• Shoe of Bounty

  Increase dodge rate and critical rate by 4%.
• S33 Book of Fate

  Increase Max. HP & CP by 4%
• Yolanda Rescue First Aid Kit
• Cheerful Snowman

  Increase Max. CP by 20%. Recover 2% HP at the start of every turn. but reduce max. HP by 12%.
• Water Symbol Guitar