Well, thats exactly what happened to a Malaysian man from Selangor, who managed to bag a hefty sum for his massive Pokmon card collection
The answer is sort of three: artifacts, blue, and black
I only look to play this in decks that are able to be fairly aggressive, those that do a chunk of the work towards winning with conventional aggression and then use the synergies to close out games that stabilize
It can also find its way into 8-Rack lists in Modern that don't despise playing two colors instead of the usual mono-black
Clement, the Worrywort If youre looking for a frog typal Commander, Clement, the Worrywort is one of the best options
They'll lose their graveyard and the reanimation spell they were trying to resolve, and you'll be up their best creature on board