Plague Boiler is a thing that is going to blow up everything you hold dear if you don’t keep removing counters from it. However, I think this card is a perfectly valid card in Commander decks that play out of the graveyard, like Dredge decks in Commander, that use Karador, Ghost Chieftain, which likes blowing the board up every turn (seeing as black/green/white gets access to damnation, life’s finale, day of judgment, wrath of god, etc), and then dredging and playing their entire board again with Karador, who will rarely cost more than 3 due to him costing 1 less for each creature in your graveyard. Plague Boiler isn’t great, but it has a place in Commander.