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 :

• 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.
• Heian-kyo Shamisen
• Light Cry Raijinco
• Ultimate Taiko

  Recover 120 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.
• S14 Profound Tentacles

  35% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Egg Hunter Basket

  Increase 6% accuracy. (Easter 2011 Limited Edition)
• S67 Omni Cloud

  Increase accuracy by 6% and dodge rate by 5%.
• Flame Soul Electric Guitar
• Gemini Halo Glyph

  Increases damage by 4%. Reduce damage taken by 65.
• Shishimai Back

  Restores 3% of users max HP.Has 4% chance to convert damage taken to HP positively.
• 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.
• Tai Chi Gold Gourd

  Restores HP by 4%. Increase healing power of scrolls by 500%. Reduce target 3% CP on every weapon attack.
• White Guitar
• Sealed Wood

  A back item which lost the original effectiveness.
• Sakura Fan

  Recover 20 HP and 150 CP at the start of every turn.
• Cursed Devil

  Increase attack damage by 15%. But reduce max. HP and max. CP by 10%
• Beast Mace
• Spirit Flag

  An inspiring banner that boosts the holders morale. Increase critical chance and dodge rate by 3%.
• Neptunes Healing

  Amazing power from Neptune. 3% chance to convert damage taken to HP positively and recover 3% HP at the start of every turn.
• Blue Wolf Tail
• S7 Gorgeous Butterfly

  Increase agility by 2. Recover 20% extra CP when charge.
• S13 Kishu Twin Blades

  Increase accuracy by 8%
• Scroll: Guren
• Bell of Beast

  Recover HP by 3%. 15% chance to absorb 3% HP of enemy who attack you.
• Puppet: Hakuki

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Ronin Straw Hat

  Additional 100 HP damage upon all attack.
• Love Missile

  Additional 60 HP damage upon all attack.