Mario is extremely manipulative, deceitful, and callous, and his behavior is negatively affecting those around him. the personality disorder he may have would fall into which of the dsm-5 dimensions?

The answer is "Antagonism".

Behaviors that put a person inconsistent with other individuals, for example, an overstated feeling of gaudiness with a corresponding desire of unique treatment, and in addition an unfeeling animosity toward others, incorporating both ignorance of others' needs and sentiments, and a preparation to utilize others in the administration of self-upgrade. Antagonism is one of the five broad personality trait domains characterized in Section III "Alternative DSM-5 Model for Personality Disorders."