@KatherinWinter
Well first would be that he is limited by stamina, knowledge of what he is doing( considering for now he has no knowledge of his abilities),he can only manipulate the efficacy of people or things in close range through touch or energy waves, the probability or improbability control is limited to his concentration(it will clearly add to his mental fatigue, depending on the result the higher the mental fatigue) and imagination
Well first would be that he is limited by stamina, knowledge of what he is doing( considering for now he has no knowledge of his abilities),he can only manipulate the efficacy of people or things in close range through touch or energy waves, the probability or improbability control is limited to his concentration(it will clearly add to his mental fatigue, depending on the result the higher the mental fatigue) and imagination