Today, most counterfeit cards are designed to pass various tests like the bend test and the light test, and some look almost exactly like the real thing, even upon close inspection (unless you're going really deep and using a jeweler's loupe, which is a good way to weed out fakes but too much work for the average player)
If we do the same simple addition among the Commander decks from Commander 2011 to today, unique nonfoil only cards total to 5,343
Edgewall Innkeeper : This card from 2023's Lord of the Rings MTG crossover comes into play for 2 mana, but over the course of the saga lets you scry, add a couple +1+1 counters to a creature, and act as a Fall of Gil-galad that allows the creature to fight another creature
Whenever Archon of Cruelty enters the battlefield or attacks, target opponent sacrifices a creature or planeswalker, discards a card, and loses 3 life
A bigger curve may mostly be 3- and 4- drops and top out at 7- or 8-mana cards
This isn't even a real picture, and I find myself sitting and asking, "What does she see