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 :

• S67 Omni Cloud

  Increase accuracy by 6% and dodge rate by 5%.
• Sealed Wood

  A back item which lost the original effectiveness.
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• Flame Blade Raijinco
• S13 Slaughter Giant Axe

  Increase max.HP by 20% but reduce max. CP by 35%.
• Toxic Mushroom

  Increases damage by 10% but the user takes 200 HP damage every turn.
• S76 Buckler and Sword

  Increase max.HP by 12% but reduce max. CP by 2%.
• S16 Umbra Steel Wheel

  Reduce damage taken by 270.
• 4th Anniversary Back Item

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

  Recover self 2% HP, reduce 3% damage taken.
• Giant Copper Coins

  Increase Mission gold reward by 30%.(Mission Only)
• War Flag: Furinkazan
• Ritual Taiko
• S14 Yabusa Knife

  Increases 4% attack damage and ignore 4% of targets dodge.
• Mother's Hug (II)

  Recover 150 HP and 3% HP at the start of every turn.
• Genin backpack (Blue)

  Double mission XP reward in level 11 to level 20.
• Bell of Fortune

  6% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• Leopard Cat Tail
• Christmas Stick

  Increase 1% damage. Recover 3% HP with every Charge.
• S22 Shinnoto Monks Staff

  Increase 4% critical rate and reduces damage received by 4%.
• Sealing the soul barrel
• New Year Kadomatsu

  Recover 100 HP and 100 CP at the start of every turn.
• Thanksgiving Candle

  Has 15% chance to absorb 2% HP of enemy who attack you. Increase 7% Combustion chance.
• Stuff Bunny

  Increase Max. HP by 2% and Max. CP by 4%.
• Lucky Chess

  Has 5% chance to freeze enemy who attacks user (3 turn). Frozen target cannot move but damage taken is reduced by 80%. Each turn recover 100 HP and 100 CP.
• Sakura Straw Hat

  Recovers 2% of users max HP every turn.