mtg warhammer 40k commander decks Universes Beyond: 40,000 Unboxing Warhammer 40,000's New Magic:

Atraxa is one of the best Commanders ever printed, because there are so many different ways to take that four-color shell and unlock stuff with proliferate

removing cards from the graveyard tends to correlate to grindy games that benefit from a creature you can chuck into play that slowly accrues advantage over a long game, especially if you throw in some cards that care about zombies or tokens

Those colors also feature the new triple keyword action

Yshtola, Nights Blessed (Scions & Spellcraft) Finally, Yshtola, Nights Blessed leads the white-blue-black Scions & Spellcraft Commander Deck, themed around Final Fantasy XIV