In Marvel Rivals, the Timestream Entanglement has caused universes to collide, forcing heroes and villains to fight together and against each other. The clash between Doctor Doom and his future counterpart has created new worlds and crises. Heroes must battle new villains, often those who use Chronovium!

Knull's Threat: The Timestream Entanglement awakens Knull, the symbiote god of darkness, from his prison planet, Klyntar. Knull uses Chronovium to spread his darkness across the gods and free himself. Venom tries to consume Knull's essence before he fully revives.

Guardians of the Galaxy vs. Venom: Shuri sends the Guardians of the Galaxy on a mission, but their ship crashes in the ruins of the Agents of the Cosmos. The Guardians clash with Venom over how to use Knull's dark power.

Dooms Clash: Doctor Doom and his future counterpart fight, causing universes to collide and creating new worlds and crises in the process.

Alliances and Enemies: Familiar faces become enemies and former enemies become allies as groups fight to defeat both Dooms before one dominates the realities.