This is done to avoid the issue of prizing (Cooltrainer Ace note: prizing is when a card you need gets stuck in the draw pile of your cards used as prizes when you knock out an opponents Pokmon), allowing you to still, have access to two Mew V incase you end up prizing two
After more than 25 years of core sets released on a usually annual cycle, MTG core sets were eventually discontinued in 2021
Across the board cost reduction and pays for itself in very few turns
They are my bulwark against the Terror
You could play a Malboro , sacrifice it, and bring it back again for an additional loss of life/exiling cards off their deck, as an example
For me, I stuck to a balanced store design with a section for people to play, shelves to buy packs of cards, and a section to display and sell individual cards