The Big Six

The Big Six consists of Zeus/Jupiter, Poseidon/Neptune, Amphitrite/Salacia, Hades/Pluto, Persephone/Proserpina and Demeter/Ceres demigod children. They are the most powerful demigods.

Additional powers
They are physically stronger, faster, more durable and agile than other demigods as well as can manipulate the mist {Only other demigods capable must be children of Witches/Sorcerers, a magic god/deity or blessed}.

Though this doesn't mean their powers are equals. As children of Demeter are more powerful than children of Ceres and children of Jupiter are more powerful than children of Zeus.

Weakness
Children of the Big Six have stronger scents than other demigods thus alerting more monsters to their presence as they smell like 4 demigods rather than 1.