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 :

• Nutcracker

  Increases Max. HP by 4% and damage by 3%.
• Shoe of Bounty

  Increase dodge rate and critical rate by 4%.
• S36 Wind Chakra Magatama

  Increase accuracy by 3% and dodge rate by 3%.
• Mech of Wing

  Reduce damage taken by 10%.
• Flag: Dragon Symbol
• S5 Umbrella of Spiritual Pulse

  Recover CP after HP reduction. (Amount: 10% of HP reduction) Recover 5% CP every turn if current CP is less than 50%. Has 8% chance to reduce skill cooldown by 1 turn at the start of each turn. (Not effective on talent skills)
• Turkey Tail
• Writing Brush
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• Flour Stick
• Swordfish
• Bat Back Item

  Back item design with reference from Halloween - Bats. Increase 5% dodge rate and decrease damage 5% at the same time.
• 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.
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• S39 Spike Hammer

  Increase accuracy by 10% but reduce max. HP by 10%.
• Toxic Village Poison Potion
• Banana Back Item

  Banana Back Item
• 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.
• S48 Titans Hammer

  The hammer used by titans to destroy castles in ancient times. Increases attack damage by 8% and accuracy by 5%.
• Red Shuriken Skis
• Scroll: Double Head
• S21 Rokulin Gunbai

  Ignore enemys dodge rate by 8%.
• Paper Windmill

  Additional 20 HP damage upon all attack.
• Christmas Chimney

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

  Increase 6% accuracy. (Easter 2011 Limited Edition)
• Thanksgiving Balloons

  Increase max. HP by 2%.
• S8 Scroll of Golden Snake

  Increase all attack damage by 4%. Decrease damage taken by 4%.