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 :

• 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.
• Scroll: Rikugo
• Carrot Launcher

  Increase agility by 1. (Easter 2011 Limited Edition)
• S31 Yabusa Dual Head Spear

  Increase 4% damage and 4% critical rate.
• Skull Twins

  7% chance to convert damage taken to HP positively and 20% chance to absorb 1% HP of enemy who attack you.
• Harvest Treasure Bag

  Reduce damage taken by 140. Recover 5% extra CP when charge.
• S10 Ancient Kikyo Umbrella

  6% chance to convert damage taken into health. But reduce Max.CP by 2%.
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%.
• Ferret Tail
• S14 Profound Pincers

  20% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Golden Torch of Zeus

  Recover 150 HP every turn
• Mimosa
• Swordfish
• Ronin Straw Hat

  Additional 100 HP damage upon all attack.
• Sanmoku Gourd

  Reduce damage taken by 65.
• S75 Trifecta Swords

  It gives off a strange feeling of vigor. Restores CP by 3%. Increases max CP by 7%.
• Deadwood Pipa
• Ancient Shinobi War Decorated

  Additional 60 HP damage upon all attack.
• 2011 Fortune Lantern

  Ninja Saga 2nd Anniversary Carnival!
• Hide Guitar
• Osuzu Shinsen

  Ninja Saga 2nd Anniversary Carnival! Increase all attack damage by 5%.
• Christmas Bag

  Reduce damage taken by 10.
• Tail of Jyubi

  Forged with chakra of the legendary tailed beast, Jyubi. Increase attack damage by 15% but reduce max. CP by 30%.
• S44 Earth Caller

  Increases attack damage by 4% and max HP by 5%.
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• Chakra Magatama

  Increase 2% accuracy.
  Additional 5 HP damage upon all attack.
• Orange Kikyo Skis