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 :

• 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%
• Beast Mace
• Scroll: Messenger (7 Days)

  Increase 2% accuracy.
  Reduce 20 HP damage taken.
  Recover 35 HP when each turn start.
• Light of Eternal

  Increase Max.HP 3%. Recover 3% SP at the start of every turn.
• Vertical Light

  Reduce 15 HP damage taken.
• Mischievous Candy

  Increase accuracy by 3%. Increase healing power of scrolls by 50%.
• S10 Frostguard's Bow

  A magical bow that has a very long range. Reduce target 8% CP on every weapon attack.
• S15 Frozen Large Sword

  Increase 7% purify chance.
• S60 Amber Jewel Wings

  Increases attack damage by 10% and increase 5% Combustion chance.
• Mini Scroll
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• S67 Omni Cloud

  Increase accuracy by 6% and dodge rate by 5%.
• S8 Scroll of Golden Snake

  Increase all attack damage by 4%. Decrease damage taken by 4%.
• Carnival Taiko

  Play the Taiko in Ninja Saga Anniversary Carnival! Recover 5 HP and CP at the start of every turn.
• S82 Amethyst Skull

  Increase purify chance by 5%. Recover 15% extra CP when charge.
• Sagittarius Hunting Set

  Increases dodge rate by 4%. Additional 80 HP damage on all attacks.
• War Flag: World Peace
• Sengoku Flag

  Increases damage by 4%. Each turn recover 120 HP.
• Bell of Beast

  Recover HP by 3%. 15% chance to absorb 3% HP of enemy who attack you.
• Spinning Wheel

  Recover user's max HP by 1% each turn. Increases user's max CP by 2%. Converts 10% of damage taken into CP.
• Leopard Cat Tail
• Civet Cat Tail
• Ice Cystal Raijinco
• Ninja Snowman

  3% chance to convert damage taken to HP positively.
• S14 Yabusa Knife

  Increases 4% attack damage and ignore 4% of targets dodge.
• S9 Warring Empire Bulwark

  A strong and sturdy shield. Reduces damage taken by 35% but reduces the user's agility by 15.