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 :

• Jingle Bell

  Reduce 2% damage taken. Recover 3% HP at the start of every turn.
• Black Koi
• Star Dawn Harp

  Increases users agility by 1. Recover CP after HP reduction. (Amount: 10% of HP reduction) Recover HP by 2% when being put on a debuff.
• Dragon Crucifix Spear
• New Year Kadomatsu

  Recover 100 HP and 100 CP at the start of every turn.
• Gummy Bear

  Restores CP by 2%. Reduce damage taken by 100.
• 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.
• S82 Amethyst Skull

  Increase purify chance by 5%. Recover 15% extra CP when charge.
• Sakura Lucky Cat

  Ignore enemys dodge rate by 4% and increase 3% dodge rate.
• Merlins Magical book

  Increases attack damage 5%
• Clear Cross

  Increase 3% purify chance. Each turn recover 150 HP and 150 CP.
• S15 Frozen Huge Sword

  Recupera 26% extra CP en cada recarga.
• Angel Heart (White)

  16% chance to absorb 2% HP of enemy who attack you.
• Cupids Flying Envelop

  A message to a far away lover.
  Reduces damage taken by 60.
  Increases max HP by 5%.
• Sakura Straw Hat

  Recovers 2% of users max HP every turn.
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• 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.
• Scroll: Terminated Rock
• S75 Trifecta Swords

  It gives off a strange feeling of vigor. Restores CP by 3%. Increases max CP by 7%.
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• 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.
• Carnival Taiko

  Play the Taiko in Ninja Saga Anniversary Carnival! Recover 5 HP and CP at the start of every turn.
• Firefox Tail
• S11 Tensho Compass

  Increase attack damage by 4%, and recover HP by 1%. But reduce critical chance by 1%.
• S2 Ancient Bone Claw

  An ancient bone that emanates great power. Increases accuracy by 8%. Recovers 100 HP every turn.
• Black Metal Hammer
• 4th Anniversary Back Item

  Ninja Saga 4th Anniversary edition! Recover 50 HP and 150 CP at the start of every turn.