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 :

• Umiyuki Painted Wood

  Reduce 24 HP damage taken.
• Justice and Freedom

  Flag of the United States of America which symbolizes freedom and liberty. Recover 3% HP with every charge. Increases critical rate by 3%. Reduces damage taken by 50.
• Little Shikigami

  Increases accuracy by 5%. Adds 80 damage in all of your attacks.
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%.
• Dark Plate Twin Blades
• 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.
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.
• Ninja Snowman

  3% chance to convert damage taken to HP positively.
• Great Stinger

  Reduces damage taken by 3%. Converts 9% of damage taken into CP.
• Ancient Shinobi War Decorated

  Additional 60 HP damage upon all attack.
• Beast Mace
• Purple Mixing Yellow Umbrella
• Large Wooden Hammer
• Clear Cross

  Increase 3% purify chance. Each turn recover 150 HP and 150 CP.
• Thanksgiving Balloons

  Increase max. HP by 2%.
• Fairy Wings

  Fairy wings that owned by a fairy
• S61 God Dragon Flag

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

  Increases damage by 5%. Has 3% chance to convert damage taken to HP positively.
• Sealed Wood

  A back item which lost the original effectiveness.
• Taurus Wand

  A necromantic wand with a figurehead of a bull. Used by necromancers in ancient times to amplify their power. Recover 100 HP at the start of every turn. Has a 12% chance to absorb 3% HP of enemies who attack you.
• Toxic Spider Web

  10% chance to apply Restriction on enemies who attacks the user for 1 turn.
  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• S2 Demons erosion

  Recovers 4% of the users max HP every turn. Additional 100 damage on all attacks.
• Gunbai: World Peace
• Tai Chi Gold Gourd

  Restores HP by 4%. Increase healing power of scrolls by 500%. Reduce target 3% CP on every weapon attack.
• Scroll: Genbu
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• Paper Umbrella

  Increase dodge by 3%. Reduce damage taken by 80.