So, what's the objectively best team one could possibly arrange, assuming 6v6 singles, no restrictions (not even species clause)?

I remember asking the same question some time last gen and, though of course general consensus was impossibile, I think many agreed with 4 Arceus, 1 Darkrai and one Darkrai counter (though I can't for the life of me remember Arceus' exact plates and the nature of said counter).

Has anything changed in the last gen?