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 :

• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• Venom Ghost

  Has 5% chance to convert damage taken to HP positively. Recover HP by 100 every turn.
• Blood Brush

  Increase 3% damage and increase healing power of scrolls by 10%.
• Successor Fan

  Restores HP & CP by 2%. Has 7% chance to freeze enemy who attacks user (2 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Ronin Idol

  Reduce damage taken by 100 and restores 4% of users max HP.
• Shoguns Badge Gourd

  Increase Max. HP & CP by 3%
• S15 Seitenken

  Recover CP after HP reduction. (Amount: 20% of HP reduction)
• Bronze Torch of Zeus

  Increase mission XP reward by 200
• Call of the Angel

  Reduce damage taken by 100. Has 6% 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%.
• Ferret Tail
• GM Phone

  GM Phone
• Ramen Shop Lantern
• Flag of the Burning Legion

  Reduce 3% damage taken and 12% chance to absorb 2% HP of enemy who attack you.
• Raijin Raijinco
• Mini Octopus
• Blizzard

  Increases users agility by 1. Has 7% chance to convert damage taken into HP.
• Crimson Lanterns

  Increase attack damage by 6%. Has 6% chance to convert damage taken to HP positively.
• Colorful Snowflake

  Increase agility by 1. Has 15% chance to freeze enemy who attacks user (2 turns). Frozen target cannot move but damage taken is reduced by 80%.
• Thanksgiving Candle

  Has 15% chance to absorb 2% HP of enemy who attack you. Increase 7% Combustion chance.
• Great Wooden Hammer (3 Days)

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Red Shell
• Gemini Halo Glyph

  Increases damage by 4%. Reduce damage taken by 65.
• 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.
• Toxic Village Poison Potion
• Puppet: Hakuki (7 Days)

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.