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 :

• Sakura Fan

  Recover 20 HP and 150 CP at the start of every turn.
• Thorn hammer
• Fighting spirit Taiko
• Call of the Angel

  Reduce damage taken by 100. Has 6% chance to convert damage taken to HP positively.
• Dark Plate Twin Blades
• Green Koi
• Ishiyama Lantern

  Reduce damage taken by 49.
• 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.
• Dragon Crucifix Spear
• Smart Phone
• Giant Copper Coins

  Increase Mission gold reward by 30%.(Mission Only)
• Holy Wings

  Increase accuracy by 4% and dodge rate by 3%.
• Blue Bird Wings
• Angel Heart (Black)

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

  2012 Egg Hunting Event
• Balloon Rabbit Doll

  Has 8% chance to convert damage taken to HP positively.
• Scroll: Guren
• S11 Wood Spirit's Bow

  Increase critical chance 13%.
• S4 Bladed Wings

  Reduce damage taken by 400. Recovers 1% of the user's max HP
• S24 Junsei Ring

  Increase max. HP by 5%.
• Butterfly Wings
• S37 Ring of Chakra Flame

  Increase attack damage by 7%.
• Harvest Treasure Bag

  Reduce damage taken by 140. Recover 5% extra CP when charge.
• S5 Possessed Koto

  Increase purify chance by 7%. Reduce jutsu CP consumption for 10%. Has 15% Chance to stun target when attack with weapon for 1 turn.
• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• Evil Claw Hammer

  Reduce 7 HP damage taken.
• Heart Aura

  Hidden feelings emerges! Recovers 2% of the user's max HP and 100 HP every turn.