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 Rain Battle Umbrella
• S13 Slaughter Double Sickle

  Recover HP by 1%. 20% chances of using Jutsu without CP.
• Love of coffee

  Prepared with love and empathy. Recovers 100 HP every turn. Increases attack damage by 4%.
• Mother's Hug

  Recover 100 HP and 2% HP at the start of every turn.
• Red Shuriken Skis
• S12 Blood Evil Gourd

  Increase max. HP by 5%.
• Giant Copper Coins

  Increase Mission gold reward by 30%.(Mission Only)
• S12 Golden Bujin Ax

  Increase attack damage by 20% but increase damage taken by 12%.
• Horror Scarecrow

  Increase attack damage by 5%. Reduce damage taken by 150.
• New Year Kadomatsu

  Recover 100 HP and 100 CP at the start of every turn.
• S41 Dragon Gunnery

  Increase 25% Combustion chance, Ignore enemys dodge rate by 5%. (Minimum requirement of 1 Attribute Point in Fire to activate combustion effect)
• Ancient Pipe

  5% chance to restrict enemy who attack user for 1 turn. (Restriction) target will not be able to use any skills.
• Straw Hat

  Increase dodge rate by 3%.
• Father's Heart

  Reduce damage taken by 6%.
• Ninja Bag

  Increase healing power of scrolls by 20%.
• Angel Wings

  Increase 3% attack damage and ignore 3% targets dodge.
• Shigu Twin Blades
• Mini Scroll
• Dark Blade

  Increase 2% critical rate and ignore 2% of targets dodge.
• Four-Point Shuriken
• Sealed Wood

  A back item which lost the original effectiveness.
• Wooden Repeating Crossbow
• Scroll: Red Curse seal
• Ink Cloud

  Additional 40 HP damage upon all attack.
• Folding Paper Fan
• 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.
• Fathers Treasure

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