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 :

• Bat Back Item

  Back item design with reference from Halloween - Bats. Increase 5% dodge rate and decrease damage 5% at the same time.
• Carrot Time Bomb

  Has 8% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%. Has 5% chance to convert damage taken to HP positively.
• Swordfish
• S82 Amethyst Skull

  Increase purify chance by 5%. Recover 15% extra CP when charge.
• Paper Umbrella

  Increase dodge by 3%. Reduce damage taken by 80.
• S61 God Dragon Flag

  Increase critical rate by 6%. Has 20% chance to apply Restriction on enemies who attacks the user for 1 turn.
• Ancient Pipe

  5% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Water Shark Skis
• Orange Koi
• GM Goldfish

  GM Goldfish
• Newbie backpack (Red)

  Double mission XP reward in level 1 to level 10.
• Ishiyama Lantern

  Reduce damage taken by 49.
• Mini Scroll
• Ninjas Stocking

  Increase 5% Combustion chance and attack damage by 3%.
• Angel Heart (Black)

  Reduce target 8% CP on every weapon attack.
• War Flag: Furinkazan
• Soul of Egg Hunting Beast

  2012 Egg Hunting Event
• Universal Saber

  Increases users agility by 1. Recover 150 HP at the start of every turn.
• Scroll: Messenger (7 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• S12 Golden Bujin Jitte

  Increase dodge rate by 10%.
• Charming Aura (Pink)

  2012 Valentines day limited aura, reduce damage 2%.
• Togatsuki Paper Fan

  Increase max. CP by 10%.
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• Christmas Bag

  Reduce damage taken by 10.
• S70 Magical Cobweb

  Restores CP by 3%. 30% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Mother's Hug

  Recover 100 HP and 2% HP at the start of every turn.
• S64 Twin Pinnacle Spear

  Powerful spears that can pinpoint enemy's weaknesses. Increases accuracy by 12%. But reduce self dodge rate by 5%.