In large part due to its Eminence ability, the mid-2010s were a weird time in Commander design
The more artifacts you play, the bigger these constructs get, and nobody has that many board sweepers to deal with them all
That card is so powerful, but they thought that adding an absolutely backbreaking drawback was enough to make such an ability balanced
Since Commander isn't played much competitively, outside of the dedicated CEDH format, the power level is tailored to the playgroup in question
As an aggressive deck, you need to be able to keep creatures on the battlefield as a means of dealing consistent damage to your opponent
10 Darksteel Forge Darksteel Forge is one of those artifacts that can swing the entire game in your favor