"Traumatic-Experience the trauma Pokémon. A Dark and Psychic type. Many trainers with a Traumatic-Experience is split with the decision of evolving it into Therapy or Depression. This puts the trainers into a crisis. Herds of Therapy and Gangs of Depression occasionally influence Traumatic-Experience's evolution. To evolve it into Therapy, you must have high friendship or have a Therapy in party. To evolve it into Depression, leave it alone until it reaches a high level or have a Depression in party. Make sure it feels neglected."