You won't see much milling going on in white MTG decks, but black, green, and occasionally red see a mill card or two
New players will almost never have to play something like this in their first games, as many of those are very rare or older cards
You can draw a bunch of cards by playing your creatures, or untapping key creatures or lands like Nykthos, Shrine to Nyx
Giada, Font of Hope $6.62 Giada, Font of Hope quickly became arguably the best angel commander, and Foundations brings this card back from Streets of New Capenna for another, longer Standard stint
Mind Stone is the weakest of these, it's hardly good enough in monocolor decks these days and just plain awful in a 3C deck that needs mana-fixing