For one thing, people are leaning more and more on Fatal Push and less on Path to Exile, which makes it even less likely than an opponent can deal with a 20/20 indestructible creature, but more importantly, we have even more combo pieces
Sevinne, the Chronoclasm Sevinne, the Chronoclasm offers free spells if you can cast a few instants and sorceries from your graveyard
These are the best commanders to put in your command zone so you draw more cards
This works mostly for the other cards too, with the only exception being the white book, which is uncommon
And, as a compromise, Wizards of the Coast kind of cheated on the mana cost by more-or-less including it in the rules text