Quote from TheAlexGnan »one cool thing i am noticing about the grixis archetype is that sideboards are starting to converge more than they used. to. Its like people have finally started to agree what its best sideboard options are (brutality, anger, damnation, extraction, dispel, countersquall, staticaster, fulminator)
I'd say that this is most likely a product of the format as a whole coalescing into a few very narrow archetypes and heavily pushing out every other deck. Two graveyard aggro decks, two control (not including grixis), two disruptive aggro, two spell combo, and then there's always tron. And it just so happens that two of them we crush, one is slightly good for us, and the other two just curb stomp us. Everything else in the format just instantly rolls over dead against at least half of those decks. This means that our SB can be very focused and we can mostly ignore everything else that can show up in an open field.