MIND SLAM

As an action, you target one creature you can see within 60 feet of you. The target must succeed on a constitution saving throw or take 1d6 force damage. If it takes any of this damage and is Large or smaller, it is knocked prone.

 Every character on Athas begins the game with the ability to manifest a random psionic talent. 

Discipline Attack Modifier = your proficiency bonus + your wisdom modifier.

The talent’s damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).