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 :

• Spiked Blade

  Increases dodge and critical chance by 4%. Recovers 70 HP each turn.
• Gold Wand

  Ignore 5% targets dodge.
• S56 Curse Brush

  A legendary Ink Brush that has the ability to materialize drawings. Increase critical rate by 5% and accuracy by 6%.
• S83 Four Wings

  Increase dodge rate by 8%.
• Ishiyama Lantern

  Reduce damage taken by 49.
• S35 Mini Teiko

  Increase agility by 1 and ignore enemys dodge rate by 2%.
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• S30 Sword Tattoo Ring

  Increase 4% critical rate and ignore 4% targets dodge.
• Orange Koi
• Pirate Skull Flag

  Increase 6% purify chance. Reduce damage taken by 5%.
• Huginn & Muninn

  Reduce 4% damage taken. Has 10% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• S62 Black Steel Swords

  Restores 5% of users max HP.
• Scroll: Genbu
• Triple Taiko

  Increases Max. HP by 4% and healing power of scrolls by 100%.
• Jaws

  Ignore 4% targets dodge.
• Purple Dragon umbrella
• Fathers Treasure

  2014 Fathers Day special back item. Doubles the TP reward from TP missions.
• Carnival Fan

  Dance with the Fan during Ninja Saga Anniversary Carnival! Increase all attack damage by 3%.
• Death Wooden Coffin
• S32 Black Senbu

  Recover HP by 4% and reduces damage received by 3%.
• S2 Demons erosion

  Recovers 4% of the users max HP every turn. Additional 100 damage on all attacks.
• Mirror of Thousand Hands
• Crystal Ice Mirror

  5% chance to freeze enemy who attack user (1 turn). Frozen target cannot move but damage taken is reduced by 80%
• Evil Claw Hammer

  Reduce 7 HP damage taken.
• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• S18 Kamimachi Lantern

  Increase 4% critical rate and recover HP by 1%.
• S25 Musha Pipa

  Increase 4% critical rate and ignore 4% targets dodge.