To summarize, The Master is the doctor's childhood friend, now his nemesis
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 won't see much milling going on in white MTG decks, but black, green, and occasionally red see a mill card or two
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
An old magic folk lore tells of the horrors of a backfiring mystic snake: Player A - casts Fact or Fiction Player B - casts Negate targetting Fact or Fiction Player A - casts Mystic Snake Player B - responds to Mystic Snake with a Disrupt targetting their negate and neglects to pay 1
So you must be wondering, with creatures and equipment so powerful, what hope does my opponent have against me