Its not like they dont like doing that
It was obvious from the beginning that there would need to be follow up expansions to the original Magic: the Gathering card list, as printed in Alpha, so much so that the very first expansion set, Arabian Nights, was released in the very same year: 1993
While banned cards, such as the Black Lotus, remain expensive to acquire (even in unplayable, reprinted form), cards still legal for use in MTGs most popular formats often make a return in the card games latest sets
Midrange While aggro decks try to win the game as quickly as possible, midrange decks take a slower approach, choosing to apply steady pressure throughout the game instead
You can also help yourself out a bit if one player becomes an archenemy and is threatening to make the game less fun for everyone involved
Phyrexia: All Will Be One is proving to be a very successful set in many regards