What are the most powerful commander cards in Modern and how do they impact the current metagame?

Some of the most powerful commander cards in Modern include cards like Uro, Titan of Nature's Wrath, Teferi, Time Raveler, and Karn, the Great Creator. These cards have a significant impact on the current metagame by providing strong abilities and strategies that can shape how games are played. Uro, for example, provides card advantage and life gain, while Teferi can disrupt opponents' plans and Karn can shut down certain strategies with its static ability. Overall, these powerful commander cards can greatly influence the way decks are built and played in the Modern format.