The only problem is that you cant effectively choose what goes down
And not just three random cards, but precisely the three creatures that will be the most backbreaking
Besides unifying all the Doctors in one deck, you also get to take advantage of the Doctor's Companion ability to pair The Fourteenth Doctor with the earthling of your choice
Oftentimes, that last effort is all it takes to close out a game
Flavor, feel, and power surge through the new cards in the decks, cozying up to great reprints like Heroic Intervention, Living Death, Toxic Deluge, and some most excellent versions of Sol Ring
Masters of multiplayer understand that you want multiple ways to sacrifice creatures, in case an opponent tries to steal your commander or lock it out of play with a card like Lignify