An old man wizard is casting a powerful magic shield at the doors of a grand castle. The wizard has long white hair and a flowing beard, giving him an ancient and wise appearance. His robes are adorned with mystical symbols and glow faintly with magical energy. He is very angry, his face contorted in a fierce expression of determination and defiance. A speech bubble next to him says, "You shall not pass!" The scene is epic and cinematic, with the wizard's magic shield creating a shimmering barrier of light that pulses with energy. The castle doors behind him are massive and ornate, hinting at the grandeur and importance of the fortress he is protecting. The atmosphere is intense, with dark clouds gathering in the sky and the ground beneath him showing signs of magical impact. The entire image captures a moment of high drama and fantasy, with the wizard's commanding presence and the powerful magic shield highlighting the epic nature of the scene