Even a card like Greater Good can be turned into a self-mill piece so long you have enough creatures to sacrifice and cards to discard, though it might not have been on your radar in regards to self-milling before
I had a lot of questions when I began: Can AI generate artwork for the game, even though it lacks artistic intent
With a bit of luck we can hit both Rosie and Scurry Oak with just one of them, letting us assemble the combo out of the blue to catch our opponent by surprise
Also, and this is the main bit, you can exile it and the parts of Vecna to create an 8/8 Legendary Black Zombie God token with indestructible
These two and Biotransference all serve the same purpose
When you sell directly to another collector, you can often avoid platform fees, which means a higher profit margin for you