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 :

• Wood Top
• 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.
• S46 Holy Drum

  Reduce damage taken by 4%. Increase chance to restrict enemy for 1 turn by 20%. Targets with “Restriction” will not be able to use any skills.
• Sealed Wood

  A back item which lost the original effectiveness.
• Mace of Pandemonium

  Increases attack damage by 6%. Has 4% chance to convert damage taken to HP positively.
• Gold Wand

  Ignore 5% targets dodge.
• Scroll: Kinjutsu I
• S9 Warring Empire Bulwark

  A strong and sturdy shield. Reduces damage taken by 35% but reduces the user's agility by 15.
• Paper Umbrella

  Increase dodge by 3%. Reduce damage taken by 80.
• S20 Empire Battle Gear

  6% chance to convert damage taken to HP positively.
• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• S45 Oblivion Ward

  Increases Max. HP by 3% and Max. CP by 6%.
• Champion Cup!

  Ultimate prize for Champions.
• Gemini Halo Glyph

  Increases damage by 4%. Reduce damage taken by 65.
• Great Wooden Hammer (7 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Taoist Spirit Stone

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

  Increase accuracy by 4% and dodge rate by 3%.
• Blue Shell
• Scroll: Yinyang Seal
• S47 Kami's Blessing

  Increase critical chance 6% and critical damage 10%.
• Patriot Aegis

  A mythical shield that can block even the most vicious attacks. Increases max HP by 3%. Has a 60% chance to recover 5% of maximum HP and reduces damage taken by 75.
• Black Koi
• Puppet: Hakuki (3 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Ritual Taiko
• S3 Fossil of Magatama

  Increase purify chance by 6%. Has 10% chance to convert damage taken to HP positively.
• S10 Ancient Kikyo Umbrella

  6% chance to convert damage taken into health. But reduce Max.CP by 2%.
• Love Missile

  Additional 60 HP damage upon all attack.