Trait: Unswappable
Talents, Feats, and anything else with this trait cannot be retrained or swapped once picked, unless overridden by a special effect or otherwise. Heritages that act like Lineages act this way.
Some classes also have level tiers where their features can't be exchanged, due to their uniqueness.
Some classes also have level tiers where their features can't be exchanged, due to their uniqueness.