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 :

• Shield of Holy Beast

  Reduce 5% damage taken. 6% chance to convert damage taken to HP positively.
• S28 Orochi Statue

  Increase attack damage by 4%, and recover HP by 1%.
• Wind Storm Raijinco
• S33 Book of Fate

  Increase Max. HP & CP by 4%
• Wooden Repeating Crossbow
• S47 Kami's Blessing

  Increase critical chance 6% and critical damage 10%.
• Mother's Hug (II)

  Recover 150 HP and 3% HP at the start of every turn.
• FIFA Whistle

  Recover 100 CP at the start of every turn and reduces damage taken by 80.
• S14 Ancient Yabusa Knife

  Increases attack damage 4% and ignore 3% of targets dodge.
• Sagittarius Hunting Set

  Increases dodge rate by 4%. Additional 80 HP damage on all attacks.
• Businessman Luggage
• S16 Umbra Fire Wheel

  Additional 170 HP damage upon all attack.
• Aries Taiko

  A magical taiko used in celebrations during the Aries zodiac months. Recovers 50 HP every turn and reduces damage taken by 25.
• Taurus Wand

  A necromantic wand with a figurehead of a bull. Used by necromancers in ancient times to amplify their power. Recover 100 HP at the start of every turn. Has a 12% chance to absorb 3% HP of enemies who attack you.
• Hanami Folding Fan

  2011 Hanami Festival - Usagi! Increase dodge rate and critical rate by 3%.
• Dragon Crucifix Spear
• Ultimate Taiko

  Recover 120 HP at the start of every turn. Has 15% chance to restrict enemy who attack user for 1 turn. Restriction target will not be able to use any skills.
• Sand Gourd
• Evil Claw Hammer

  Reduce 7 HP damage taken.
• S77 Curse Dragon

  Increases attack damage by 9% and critical damage 10%.
• S19 Magatama Soul Barrel

  Increase 4% critical rate and ignore 4% targets dodge.
• Three-stringed Lute Guitar
• Jingle Bell

  Reduce 2% damage taken. Recover 3% HP at the start of every turn.
• White Guitar
• Super Rabbit Doll

  Increase damage by 9%.
• Yawata Magatama

  Increase 3% accuracy.
  Additional 20 HP damage upon all attack.
• Shoguns Badge Gourd

  Increase Max. HP & CP by 3%