Necrodominance restricts your maximum hand size to five, which can be offset with infinite hand size cards like Reliquary Tower
White life gain comes primarily in the flavor of either healing or lifelink, both of which are present in Foundations
Especially during the time of Flash being legal, people held the color so low regard that they opted to play Thrasios, Triton Hero and Tymna the Weaver as the Commanders for their decks, forgoing what is now (in my opinion) the formats most powerful card
(I know, ramping is not the best thing to do when you already have a lot of mana, but its better than nothing, and it also lowers your chances of drawing more lands.) Besides, these are artifacts, and there are plenty of ways to leverage them in other ways in the set
Theoretically, its entirely possible that Modern Horizons 3 will have a similarly cracked, cheap, and Commander-focused all-star