In 2019, an anonymous buyer purchased an unsigned "Pristine 9.5 grade" Beckett Grading Services-graded Alpha Black Lotus for $166,100
Entei is surprisingly more straightforward to find than most of the other expensive Rocket's cards, as HP cards have registered $100 sales
I've run across a few during trades and they tended to stand out because I was aware that fakes existed.
Apart from lands, ramp, draw, and removal, I would make the other categories "enablers" for cards like Awakening Zone and "payoffs" for cards like Dictate of Erebos You might notice you're not running too many ways to generate enough tokens and a tad too many sac outlets or payoffs that aren't triggering often enough
Boom // Bust, a red MTG card that blows up lands on both sides of the board, has shot up more than five times its original value in under a week