Poster for the film 'Avengers: Doomsday,' featuring Doctor Doom portrayed by Rob

Poster for the film 'Avengers: Doomsday,' featuring Doctor Doom portrayed by Robert Downey Jr. He is dressed in the iconic green cloak and armor of Doctor Doom, with intricate metalwork and his distinctive mask. Robert Downey Jr. is holding Doctor Doom's mask in one hand, with a commanding and intense expression. The background showcases a dramatic scene of multiverse destruction, with collapsing dimensions, swirling cosmic energies, and shattered realities. The atmosphere is dark and foreboding, with a color palette reflecting chaos and devastation. The title 'Avengers: Doomsday' is prominently displayed in a bold, impactful font."

Avoid bright or cheerful colors, cartoonish elements, modern or overly futuristic designs, background characters, and cluttered layouts. Ensure the focus remains on Doctor Doom holding the mask and the dramatic multiverse-destruction theme