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 :

• Stuff Bunny

  Increase Max. HP by 2% and Max. CP by 4%.
• S47 Kami's Blessing

  Increase critical chance 6% and critical damage 10%.
• Sakura Fan

  Recover 20 HP and 150 CP at the start of every turn.
• S38 Genrei Fan

  Increase max.CP by 50% but reduce max. HP by 20%.
• Roasted Turkey

  Restore 20 HP every turn.
• Sakura Dance

  Increase damage by 3% and max. HP by 4%.
• Purple Mixing Yellow Umbrella
• Sand Gourd
• Apricot Pipa
• S42 Tendo Tips

  Increases attack damage and reduces damage received by 5%.
• S59 Rejuvenating Blade Wings

  Increases Max. HP by 6% and Max. CP by 4%.
• Flag: Dragon Symbol
• Nightmare Grudge

  Ignore 4% targets dodge.
• Vertical Light

  Reduce 15 HP damage taken.
• S16 Umbra Fire Wheel

  Additional 170 HP damage upon all attack.
• Flame Soul Electric Guitar
• Cupids Flying Envelop

  A message to a far away lover.
  Reduces damage taken by 60.
  Increases max HP by 5%.
• Dark Evil Sickle

  Exclusive Halloween item - the devils sickle that has 10% chance to absorb 1% HP of enemy who attack you.
• Newbie backpack (Red)

  Double mission XP reward in level 1 to level 10.
• Genin backpack (Blue)

  Double mission XP reward in level 11 to level 20.
• Sakura wah

  Restores HP by 3% and CP by 99 each turn.
• Yawata Magatama

  Increase 3% accuracy.
  Additional 20 HP damage upon all attack.
• Puppet: Hakuki

  Increase 3% accuracy.
  Reduce 46 HP damage taken.
  Recover 83 HP when each turn start.
• Leos Recurve Bow

  Increases damage by 4% and dodge rate by 1%.
• Four-Point Shuriken
• S45 Oblivion Ward

  Increases Max. HP by 3% and Max. CP by 6%.
• S5 Possessed Koto

  Increase purify chance by 7%. Reduce jutsu CP consumption for 10%. Has 15% Chance to stun target when attack with weapon for 1 turn.