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 :

• Scroll: Kochin
• S15 Frozen Large Sword

  Increase 7% purify chance.
• S5 The Guider

  Increase purify chance by 7%. Recover 8% HP when purify. Recovers 4% of the user's max HP.
• S43 Extreme Lotus

  The back item contains 30% chance to absorb 3% HP of enemy which makes attack on you.
• Curved Spear
• S12 Blood Evil Gourd

  Increase max. HP by 5%.
• S32 Black Senbu

  Recover HP by 4% and reduces damage received by 3%.
• Triple Taiko

  Increases Max. HP by 4% and healing power of scrolls by 100%.
• Colorful Moai Egg

  Reduce damage taken by 100 and recover 10% extra CP when charge.
• Scroll: Kinjutsu I
• S75 Trifecta Swords

  It gives off a strange feeling of vigor. Restores CP by 3%. Increases max CP by 7%.
• Angel Heart (Black)

  Reduce target 8% CP on every weapon attack.
• Ninja Bunny Doll

  Increase 2% damage and ignore 3% targets dodge.
• S9 Ancient Akazonke Gunbai

  Increase critical rate and accuracy by 4%. But reduce Max.HP by 2%.
• Thanksgiving Balloons

  Increase max. HP by 2%.
• Mother's Hug (II)

  Recover 150 HP and 3% HP at the start of every turn.
• S10 Kikyo Umbrella

  6% chance to convert damage taken to HP positively.
• Native Horn

  Increase max. CP by 3%, Recover 1% HP with every Charge.
• Osuzu Shinsen

  Ninja Saga 2nd Anniversary Carnival! Increase all attack damage by 5%.
• Shoguns Badge Gourd

  Increase Max. HP & CP by 3%
• Golden Torch of Zeus

  Recover 150 HP every turn
• Shinobi Curse Battle Umbrella
• Fairy Fishing Rod

  Each turn recover 3% HP and 100 CP
• Scroll: Fire and Earth
• Blessed Kitty

  Bless on his master everyday, which increase 3% damage. Heal 1% HP in every turn.
• Puppet: Hakuki

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• S48 Titans Hammer

  The hammer used by titans to destroy castles in ancient times. Increases attack damage by 8% and accuracy by 5%.