A detailed pencil sketch of an elderly wizard casting a spell with his wand, energy swirling from the tip in dynamic motion, his robes flowing around him. The scene captures a sense of intense focus and power, with intricate textures bringing the character to life. In the background, mystical symbols faintly glow, adding a sense of ancient magic to the atmosphere. The overall composition is raw and vivid, emphasizing the wizard's commanding presence in a moment of spellcasting prowess.