Conversion 2 allows Porygon to add resistance to itself
Thanks to the cheap Warp cost, theres a good chance you can set up a window where you play Exalted Sunborn for two mana and follow up right away with a token-making effect
That means bigger numbers, more consistency, and a better chance of triggering high-value results on other cards
2x Pikachu ex 2x Zapdos ex 2x Voltorb 2x Electrode 2x Giovanni 2x Potion 2x Poke Ball 2x Professors Research 2x Sabrina 2x X Speed If the meta deck outlined above features a few too many rare cards you don't yet have, namely Zapdos ex, then switch out the Zapdos ex and Giovanni cards for Pikachu and Raichu cards
While likely to be a fan-favorite among tribal decks in Commander, it also seems plausible that this powerful mythic could find a home in Standard, Historic, and beyond, especially with so many powerful Angels, Giants, and Elves arriving in Kaldheim