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 :

• S73 Smite Evil Shield

  Has 25% chance to absorb 2% HP of enemy who attack you. 8% chance to convert damage taken to HP positively.
• S43 Extreme Lotus

  The back item contains 30% chance to absorb 3% HP of enemy which makes attack on you.
• Ink Cloud

  Additional 40 HP damage upon all attack.
• S17 Scorching Sun Lantern

  Recover 10% cp after dealing damage.
• Christmas Deer

  Increase critical chance 2% and critical damage 6%.
• 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.
• Gunbai: Gyoji
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• S49 Serpent Dragon Chakram

  An exceptional weapon crafted with serpent and dragon remains. Increases agility by 1 and accuracy by 7%.
• Carp Flag
• Knot of Avenger

  20% chance to absorb 2% HP of enemy who attack you. 20% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• S9 Ancient Akazonke Gunbai

  Increase critical rate and accuracy by 4%. But reduce Max.HP by 2%.
• Apple Candy

  Increases damage by 5%. Has 3% chance to convert damage taken to HP positively.
• Dragon Crucifix Spear
• Engagement Ring

  Additional 20 HP damage upon all attack.
• S31 Yabusa Dual Head Spear

  Increase 4% damage and 4% critical rate.
• Tai Chi Gold Gourd

  Restores HP by 4%. Increase healing power of scrolls by 500%. Reduce target 3% CP on every weapon attack.
• Mercy Of Libra

  Recover 2% HP at the start of every turn. And recover 3% HP with every Charge.
• Basic Jounin Battle Gear
• S63 Stormbringer

  Increases dodge rate by 5%. Has 50% chance to absorb 2% HP of enemy who attack you.
• S28 Orochi Statue

  Increase attack damage by 4%, and recover HP by 1%.
• Dark Evil Sickle

  Exclusive Halloween item - the devils sickle that has 10% chance to absorb 1% HP of enemy who attack you.
• Great Wooden Hammer

  Increase healing power of scrolls by 50%.
  Reduce 8 HP damage taken.
• Mech of Wing

  Reduce damage taken by 10%.
• S64 Twin Pinnacle Spear

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

  Bless on his master everyday, which increase 3% damage. Heal 1% HP in every turn.