Legacy and Vintage Access to fast mana in older formats through cards like Ancient Tomb and Chrome Mox allows Stax decks to establish large lock pieces as soon as turn one
Aside from a couple random choices, 95% of the deck is focused on the goal of "put creatures in graveyard, profit" and that's good to see
Once you do its hard to remove and even harder to kill in combat, and it can give you a winning boardstate in a single swing
If you wanted sets back then, you could buy complete mint sets easily
Mega Darkrai ex, Mega Zeraora ex, and more shadowy Mega Evolution cards headline the darkest release yet in the Pokmon TCG
Collusion has buyback so it can be a fantastic outlet for those excess lands late game, and Cruel Tutor is just another vampiric variant at a smaller dollar investment