Spellcaster

Spellcasters are a life state introduced in The Sims 4: Realm of Magic, they are very similar to Witches. Spellcasters are denizens of Glimmerbrook and can cast spells as well as concot potions to cause magical effects.

Create a Sim
Spellcasters can be made straight from Create a Sim, just like other occults, and they can wear magical attire to fit their powers.

Right of Ascension
A norman human Sim can become a spellcaster by communing with one of the three Sages in Glimmerbrook and enact a ritual known as the "Right of Ascension".