@pokemonrevolution recently presented a new and likely theory for these Grey Thick stamps, which I will quote here: Grey Stamp Theory Grey stamped 1st Edition Base set cards for the most part have commonly been considered to exist because of either A) The ink was low when they were stamped B) The stamp was not pressed down with enough force to create a nice dark color
For the older decks, we know how they play, but we're also factoring in their total value in 2026 alongside mechanics, upgradability, and again, most importantly, whether they are fun to play
Were actually relying on our opponents having access to creatures to attack our opponents with in the first place, so were relying more on Curse of the Swine and Reins of Power to get the job done
Funnily enough, this also picks up -1/-1 counters, finality counters, stun counters, or any other detrimental counters that end up on your creatures
Pyromancer allows us to generate incremental pressure while we cast spells we want to be casting anyway
the old cards arent even legal in the modern game