Porygon is card #39 of 102 in Base (1999), a Uncommon illustrated by Tomoaki Imakuni. At about $4.43 it is the #35 most valuable card in the set. In a Base booster it turns up about once every 11 packs. It is one of 24 Porygon cards printed so far.
1999Base Set
2002Neo Destiny
2005Unseen Forces
2010HS—Triumphant
2016Evolutions
2018McDonald's Collection 2018
2022Lost Origin
2025Destined Rivals

















An ungraded Porygon from Base sells for about $4.43. A PSA 10 is worth more, roughly $57.59 by our estimate, and a PSA 9 around $17.72.
It is a Uncommon, and it shows up about once every 11 Base packs.
Tomoaki Imakuni drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Base booster packs in your browser with the set's real pull rates and keep what you pull in a digital binder. No real cards, nothing to buy.