I can find 3 separate clusters (or 'archetype') for Malcolm/Vial. Cluster 0 is the main one with the typical Grixis stuff. Cluster 1 is a bit more control-ish. And Cluster 2 has more focus on the type-changers. See images for win rates.
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@datatog Sounds like player diff with those numbers for the other 2 “clusters”, the differential of sample size between them is astronomical