Before the works of these three deckbuilding geniuses who are all among the greatest the game has ever seen, players would frequently pack their decks with so many creatures, even when playing control. The idea of making every card in your deck dedicated to the sole purpose of not dying was a radically different paradigm
A 3/2 for 1G fills out the curve in these decks naturally in a way that is easily castable and on a card that gives these decks some staying power against interaction
Pietra, Crafter of Clowns Maybe I just hate fun, but the idea of having to interrupt the games around me to activate Pietra, Crafter of Clowns isn't my idea of a good time
Teferi, Timeless Voyager Draw lots of extra cards, and trigger abilities every time you do
So if youre looking for a cool Darkrai card to add to your collection, make sure to place it away from any Cresselia cards you have in your binder