Humans

Humans are a dominant species of the main planet in both Usifia and Vhestibulium.

In Usifia
Humans in Usifia appear similar to those in Vhestibulium except there is a wider range of hair and eye colors. When humans travel from Usifia to Vhestibulium, if their hair color is not native to Vhestibulium, their hair color changes to one native to Vhestibulium such as brown or black. When traveling from Vhestibulium to Usifia, the hair color reverts to its original color. It is unknown if Vhestibulian hair changes color on travel between universes because no native Vhestibulians have traveled across universes as of yet.

It has not been stated whether witches and warlocks are a type of human or a different species entirely.

Wizards
Wizards are a type of human in Usifia, natively from Elkloria, that use magic.

Powers:
Magic: Wizards can command Aethelum particles to their bidding.

Darkins
Darkins are a demonic version of wizards that have been corrupted through dark magic and use dark magic.

Powers:
Dark Magic: Darkins can use dark magic.

Dark Wizards
Dark wizards are wizards who have used magic to kill and have had their magic polluted with Dark Aethelum.

Powers:
Dark Magic: Dark wizards can use dark magic and are deprived of the right to light magic; this makes them both more dangerous than light wizards and at the same time in danger of light wizards since their dark status allows them to be killed by light magic

Semidei
Semidei are beings with the souls of Fae and the bodies of humans or part-humans.

Powers:
Holy Magic: Semideus magic is a bit more holy in nature

Magic Nullification: Semidei can nullify magic

Infinite Magic: Semidei have a faster magic regeneration and they can access a source of infinite or near infinite magic when their powers are blocked off, such as by Enkyron

Fae Form: Semidei can transform into Fae temporarily, though their Fae form is linked to their human form so they cannot do too much with it for risk of killing their human forms

Divination: Semidei see the future in the period of unconsciousness following their descent into their normal body

Semidaemones
Semidaemones are beings with the souls of Demons and the bodies of humans or part-humans.

Powers:
Demonic Magic: Semidaemon magic is a bit more Demonic in nature, sometimes even reminiscent of curses

Magic Creating: Semidaemones can "create all manner of curses"

Demon Form: Presumably, in the same way Semidei can become Fae, Semidaemones can transform into immortal demons

Divination: Semidaemones see the future in the period of unconsciousness following their descent into their normal body

Nonmagicals
Nonmagicals are the humans in Usifia that do not have magical powers. They have a variety of colors of hair and eyes like wizards.

In Vhestibulium
In Vhestibulium, humans have the normal hair and eye colors. If they were born in Usifia, their hair and eye color becomes a "normal" color when crossing over. People native to Vhestibulium do not have magic power, but there has been interaction between the worlds several times throughout history.

Powers:
None

Trivia

 * Humans are the species Homo sapiens sapiens in the real world, and the only known sapient species