The ones drawn by Ken Sugimori are classic, but my favorites here are all the ones drawn by Sumiyoshi Kizuki (and one by Himeno)
Even if you examine the most expensive Articuno cards in the Pokemon TCG, you'll struggle to find another card with artwork quite like this one
When you do that, you'll also put at least two +1/+1 counters on another creature, which is easy to increase in Golgari +1/+1 counter decks
It's a classic high-risk, high-reward engineits great in decks that pressure opponents consistently and can afford the life loss in exchange for staying loaded on cards
The decks in the Core Set 2020 Spellslinger Starter Kit have some decent rares, and pretty much one card you're looking to draw each game
So then, what are the rarest and most expensive Pokmon cards