So part of the playtest is to see if this class archetype avoids ethnic race-bating?
The crystal ball and tarot cards might be a bit too on the nose for Romantic Era "gypsy" stereotypes.
Otherwise it seems ethnically neutral. It could be a Twilight Zone episode from any ethnicity.
The fiction becomes real, or the story summons the spirit, or speaking the name, seem widespread (maybe universal?) tropes.
I like the fact that "spirit" includes any magical creature: fey, giants, dragons, angels, fiends, etcetera. Maybe include elementals too.
Maybe expand the options of divination methods to include other cultures as well?