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 :

• Hidden Green Umbrella
• Giant Copper Coins

  Increase Mission gold reward by 30%.(Mission Only)
• Christmas Bag

  Reduce damage taken by 10.
• Black Double Gun

  Ignore enemys dodge rate by 3%. Increase accuracy by 3%.
• Christmas Chimney

  4% chance to freeze enemy who attacks user (1 turn). Frozen target cannot move but damage taken is reduced by 80%.
• Ghost Spider

  Reduce 72 HP damage taken.
• Basic Jounin Battle Gear
• GM Goldfish

  GM Goldfish
• Thanksgiving Balloons

  Increase max. HP by 2%.
• Bear of Affection

  Increase dodge rate by 3% and ignore target dodge by 3%.
• Lovely Santa Bag

  A bag that resembles Santa Claus, it emanates faint revitalizing aura. Restores 140 HP and 30 CP at the start of every turn.
• Scroll: Taiin
• Poor Bag

  7% chance to convert damage taken to HP positively. Reduce damage taken by 5%.
• Dragon Crucifix Spear
• Aries Taiko

  A magical taiko used in celebrations during the Aries zodiac months. Recovers 50 HP every turn and reduces damage taken by 25.
• Mother's Hug (II)

  Recover 150 HP and 3% HP at the start of every turn.
• Musashi Twin Blades
• Dark Plate Twin Blades
• War Flag: Furinkazan
• Tail of Kyubi

  Forged with chakra of the legendary tailed beast, Kyubi. 100% immune to Burn effect and increase 3% Combustion chance.
• Extra Large Presents Bag

  A large present bag, but nobody knows what it contains.
• S9 Warring Empire Guarding Bow

  An ancient enchanted bow with great range used in warfare. Increases accuracy by 10%. Restore 100 HP every turn.
• Sack of Hearts

  Cupids sack of hearts. Recovers 3% HP every turn. Has 5% chance to convert any damage to HP.
• Charming Aura (Red)

  2012 Valentines day limited aura, increase all damage 2%.
• Dark Evil Sickle

  Exclusive Halloween item - the devils sickle that has 10% chance to absorb 1% HP of enemy who attack you.
• Cupids Flying Envelop

  A message to a far away lover.
  Reduces damage taken by 60.
  Increases max HP by 5%.
• Butterfly Wings