Cross-Class Psychics (3.5e Variant Rule)
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Since Psychic Ability is a feat and psychic abilities are learned as skills, it is possible for a character of any class to develop a measure of psychic ability. The character needs the necessary psychic feats and can then spend skill points on the psychic skills granted by those feats. Note, however, that psychic skills are cross-class skills for classes other than the psychic (or the various psychic prestige classes below), so cross-class psychics spend the same amount of skill points for half the capability of a similarly trained character of the psychic class.