Doom SlayervsDarkseid

The Doom Slayer is gaming's ultimate power fantasy — a warrior so feared that Hell itself trembles at his approach. He has fought through the demonic hordes for eons, killed the Dark Lord of the DOOM universe, slain Titans with the Crucible, and possesses strength and speed blessed by the Seraphim of Urdak. His arsenal includes the BFG-9000, the Crucible blade, and every weapon imaginable. In his own universe, the Doom Slayer is essentially unstoppable.

Darkseid, however, operates at a power tier that makes the DOOM universe look like a local disturbance. True-form Darkseid is a multiversal concept — his fall through the multiverse in Final Crisis nearly destroyed all of reality. His Omega Beams can disintegrate beings who survive planetary-level attacks, the Anti-Life Equation enslaves all free will, and his avatars regularly fight Superman to standstills.

The Doom Slayer's feats, while incredible, are dimensional in scale — he's conquered Hell and defeated its ruler. Darkseid has conquered thousands of worlds across multiple universes and regularly threatens all of existence. The power gap between king of one Hell dimension and multiversal cosmic entity is astronomical.

The Doom Slayer's rage and determination are his greatest assets, and the Crucible blade is a supernatural weapon that might theoretically harm Darkseid's avatar form. But Darkseid's Omega Beams, Omega Sanction, and reality-warping abilities provide win conditions that the Doom Slayer has never encountered and has no counter for.