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 :

• Wooden Hammer
• Christmas Wreath

  Increase agility by 1 and Max HP by 1%.
• S20 Empire Battle Gear

  6% chance to convert damage taken to HP positively.
• Radish Launcher

  It will fly you to the moon! (Easter 2011 Limited Edition)
• Scroll: Rikugo
• Shoe of Bounty

  Increase dodge rate and critical rate by 4%.
• S67 Omni Cloud

  Increase accuracy by 6% and dodge rate by 5%.
• 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)
• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• Mini Goldfish
• S9 Warring Empire Guarding Bow

  An ancient enchanted bow with great range used in warfare. Increases accuracy by 10%. Restore 100 HP every turn.
• 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.
• S18 Kamimachi Lantern

  Increase 4% critical rate and recover HP by 1%.
• S60 Amber Jewel Wings

  Increases attack damage by 10% and increase 5% Combustion chance.
• Scroll: Messenger (3 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• Soul Capturing Hammer

  Recover self 2% HP, reduce 3% damage taken.
• S18 Evil Spirit Shield

  Reduce 14% damage taken.
• Civet Cat Tail
• Angel Heart (Black)

  Reduce target 8% CP on every weapon attack.
• White Guitar
• 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%.
• S34 Wooden Name Tag

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Writing Brush
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Sand Gourd
• Bear of Affection

  Increase dodge rate by 3% and ignore target dodge by 3%.
• S14 Profound Pincers

  20% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.