All in all it seems they had a really good grasp on what Porygon was going to look like considering how miniscule the changes are between the playtest versions and its final Base Set release
Either way, this drastic variation means we cannot give a consistent score for seam strength
We do this by getting at least one poison counter on each of them, ideally with one of five cards: Ichor Rats, Infectious Inquiry, Prologue to Phyresis, Vraska's Fall, and Phyresis Outbreak
The first is a triggered ability: "When this permanent enters the battlefield, target player may search their library for a card named [name], reveal it, put it into their hand, then shuffle their library." (6/16/2023) Note that the target player searches their library (which may be affected by effects such as that of Stranglehold) and that the card they find is revealed, even though these words aren't included in the ability's reminder text
Lottery-only distribution limited initial supply
[15] As part of the development of the set, Wizards of the Coast created a pre-release test card depicting the Pokmon Raichu that has PRERELEASE stamped with green text