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 :

• Blue Cloud Umbrella

  Ignore 6% targets dodge.
• Sagittarius Hunting Set

  Increases dodge rate by 4%. Additional 80 HP damage on all attacks.
• Training Dummy

  Increases accuracy by 5% and dodge rate by 4%.
• S15 Ancient Seitenken

  Recover CP after HP reduction. (Amount: 16% of HP reduction)
• Hide Guitar
• S1 Helianthus

  Restores HP & CP by 5%. Increase purify chance by 5%.
• Sweet Treat

  Increase critical chance by 2% and dodge rate by 3%.
• Gemini Halo Glyph

  Increases damage by 4%. Reduce damage taken by 65.
• Bronze Torch of Zeus

  Increase mission XP reward by 200
• Virgos Eternal Wings

  Increases agility by 1. Increases users attack damage by 3%.
• Charming Aura (Red)

  2012 Valentines day limited aura, increase all damage 2%.
• Ghost Spider

  Reduce 72 HP damage taken.
• Hanami Folding Fan

  2011 Hanami Festival - Usagi! Increase dodge rate and critical rate by 3%.
• S67 Omni Cloud

  Increase accuracy by 6% and dodge rate by 5%.
• War Flag: World Peace
• Mother's Hug

  Recover 100 HP and 2% HP at the start of every turn.
• Peom Fan

  Reduce 46 HP damage taken.
• Minotaurs Horn

  Recover 350 HP at the start of every turn. Has 15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Father's Heart (II)

  Reduce damage taken by 7%. Reduce damage taken by 150.
• Griffin Thunderball

  Increases critical rate by 3% and dodge rate by 3%.
• Dark Cry Raijinco
• Bell of Fortune

  6% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• 4th Anniversary Back Item

  Ninja Saga 4th Anniversary edition! Recover 50 HP and 150 CP at the start of every turn.
• Merlins Magical book

  Increases attack damage 5%
• S16 Umbra Fire Wheel

  Additional 170 HP damage upon all attack.
• Super Rabbit Doll

  Increase damage by 9%.
• Umiyuki Painted Wood

  Reduce 24 HP damage taken.