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 :

• Gold Wand

  Ignore 5% targets dodge.
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• 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.
• Scroll: Terminated Rock
• Grand Light Gourd

  Increase 3% damage
• Hanagara Dama

  Increase max. CP by 6%
• Carp Flag
• S16 King Kong Ring

  Recover HP by 1% and reduces damage received by 4%.
• Dark Plate Twin Blades
• Snowflake

  3% chance to freeze enemy who attack user (1 turn). (Frozen target cannot move but damage taken is reduced by 80%.)
• Wine Gourd
• Peom Fan

  Reduce 46 HP damage taken.
• Virgos Eternal Wings

  Increases agility by 1. Increases users attack damage by 3%.
• Curved Spear
• Paper Envoy of God

  Increases attack damage and reduces damage received by 4%
• Ame no Kemagatama

  Increase 3% accuracy.
  Additional 30 HP damage upon all attack.
• Sengoku Flag

  Increases damage by 4%. Each turn recover 120 HP.
• Hanami Taiko

  2011 Hanami Festival - Rhythm! Recover HP & CP by 10 every turn.
• Scroll: Tenku
• Thanksgiving Balloons

  Increase max. HP by 2%.
• GM back item
• Black Koi
• Taoist Spirit Stone

  Increases Max. HP by 3% and Max. CP by 5%. Increase purify chance by 1%.
• Angel Heart (White)

  16% chance to absorb 2% HP of enemy who attack you.
• Crystal Ice Mirror

  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• Great Wooden Hammer (7 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.