The dark wizard requires a voice and personality that is both commanding and intimidating. The voice should be deep and menacing, with a hint of danger and a touch of evil behind it. The words should be carefully chosen and spoken slowly and deliberately, with a hint of malice and a powerful presence. The personality should be confident and intimidating, with an air of superiority and a willingness to do whatever it takes to get what he wants. The dark wizard should be unyielding and unafraid to make difficult decisions and take risks. He should be able to command an audience with his presence and be able to use his words to manipulate and control those around him. His voice and personality should create an aura of power and strength that will inspire fear and respect in those who encounter him.