Fatigued Bargain

Your magic suppresses a creature’s inhibitions, urging out its own self-destructive strength. Until the end of your next turn, it ignores the effects of fatigue . At the end of the duration, it takes an amount of psychic damage equal to 1d4 × the number of levels of fatigue it is suffering. Additionally, on its turn, it can take an additional action, which can’t be used for casting a spell other than a cantrip with a casting time of 1 action. If it takes this additional action, it suffers a level of fatigue at the end of its turn.