With how big libraries are in Commander, you are going to need the extra help, and Bruvac helps get your opponents to zero cards much quicker
I think it's got a shot at winning some games, but I'm also aware that some players react very negatively to mill
I love everything about the design of these partners from both flavor and function perspective
They add a card that shuts down their own plan, then decide graveyard hate is bad. If you rely on your own graveyard (reanimator, aristocrats, delve, flashback, recursion commanders), prioritize: Targeted exile effects (pick off key threats) One-shot nukes that you can time (hit them, then keep playing) Effects that do not blanket-exile everything forever If you do not use your graveyard much, you can play the heavier continuous pieces with fewer downsides
That doesnt mean you wont see one or two of the heavy hitters on the list