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 :

• Colorful Snowflake

  Increase agility by 1. Has 15% chance to freeze enemy who attacks user (2 turns). Frozen target cannot move but damage taken is reduced by 80%.
• 2011 Carnival Jiegu

  Ninja Saga 2nd Anniversary Carnival! Each turn recover 100 HP and 100 CP.
• Apricot Pipa
• Ninjas Stocking

  Increase 5% Combustion chance and attack damage by 3%.
• Luckey windmill

  Each turn recover 120 HP and 120 CP.
• Tail of Kyubi

  Forged with chakra of the legendary tailed beast, Kyubi. 100% immune to Burn effect and increase 3% Combustion chance.
• Puppet: Hakuki (3 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• S32 Black Senbu

  Recover HP by 4% and reduces damage received by 3%.
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• S14 Profound Tentacles

  35% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Radish Launcher

  It will fly you to the moon! (Easter 2011 Limited Edition)
• Carp Flag
• Musashi Twin Blades
• S10 Frostguard's Shield

  Shield of the valiant warrior Tundra. Increase agility by 2. Has 17% Chance to stun target when attack with weapon for 1 turn.
• Holiday Doll

  Expecting Santa in every year! Critical and dodge rate increase 3%.
• Spartan Shield

  Restore 100 HP every turn. Reduce damage taken by 5%.
• Scroll: Messenger (7 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• S2 Ancient Bone Claw

  An ancient bone that emanates great power. Increases accuracy by 8%. Recovers 100 HP every turn.
• White Metal Hammer
• S39 Spike Hammer

  Increase accuracy by 10% but reduce max. HP by 10%.
• Engagement Ring

  Additional 20 HP damage upon all attack.
• Fathers Treasure

  2014 Fathers Day special back item. Doubles the TP reward from TP missions.
• S2 Scroll Capsule

  Increase attack damage by 8%. Recover 7% cp after dealing damage.
• Paper Windmill

  Additional 20 HP damage upon all attack.
• Celestial Wood Raijinco
• Taoist Spirit Stone

  Increases Max. HP by 3% and Max. CP by 5%. Increase purify chance by 1%.