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 :

• Ritual Taiko
• Evil Way Lute

  Has a 50% chance to recover 5% of maximum HP. Has 10% chance to absorb 3% HP
• Golden-bound Cudgel
• S31 Yabusa Dual Head Spear

  Increase 4% damage and 4% critical rate.
• Scarlet Sword Wheel

  Increases damage by 5% and dodge rate by 3%.
• Spiked Blade

  Increases dodge and critical chance by 4%. Recovers 70 HP each turn.
• S13 Slaughter Giant Axe

  Increase max.HP by 20% but reduce max. CP by 35%.
• Angel Wings

  Increase 3% attack damage and ignore 3% targets dodge.
• S9 Ancient Akazonke Gunbai

  Increase critical rate and accuracy by 4%. But reduce Max.HP by 2%.
• Gruidae Wing

  Each turn recover 80 CP. Recover CP after HP reduction. (Amount: 8% of HP reduction)
• MegaJingleBell

  A glorious Christmas artifact which can be used in battle. Ignores 5% of enemys dodge rate. Recovers 2% of users max HP every turn.
• Straw Hat

  Increase dodge rate by 3%.
• S9 Warring Empire Bulwark

  A strong and sturdy shield. Reduces damage taken by 35% but reduces the user's agility by 15.
• S12 Golden Bujin Ax

  Increase attack damage by 20% but increase damage taken by 12%.
• S33 Book of Fate

  Increase Max. HP & CP by 4%
• Cancer Assegai

  Increases critical rate by 4%. Reduce damage taken by 3%.
• S45 Oblivion Ward

  Increases Max. HP by 3% and Max. CP by 6%.
• Mech of Wing

  Reduce damage taken by 10%.
• S10 Ancient Kikyo Umbrella

  6% chance to convert damage taken into health. But reduce Max.CP by 2%.
• Sakura Rain Battle Umbrella
• Venom Ghost

  Has 5% chance to convert damage taken to HP positively. Recover HP by 100 every turn.
• Ukon Three Blades
• Shield of Holy Beast

  Reduce 5% damage taken. 6% chance to convert damage taken to HP positively.
• Carnival Taiko

  Play the Taiko in Ninja Saga Anniversary Carnival! Recover 5 HP and CP at the start of every turn.
• Carrot Time Bomb

  Has 8% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%. Has 5% chance to convert damage taken to HP positively.
• Cupid Wing

  Increase critical chance 4% and critical damage 10%.
• S35 Mini Teiko

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