Close to broken
Acquiring this card is not just possessing a collectible it's unlocking a piece of Pokmon history, where secrets, victories, and the thrill of discovery converge in a single artifact
Also, white does get some artifact creature producers that can start to bridge the gap: Black I don't really know
In any deck with non-Angel creatures this one is kinda cracked, but do keep in mind: you want more than 30 creatures, lots of EtBs, and plenty of self-sacrifice or sacrifice outlets to truly rinse this card for all it is worth
Some of the types in the Pokmon Trading Card Game are not the same as those in the games, which can make it difficult for players to understand how weaknesses work in the card game
(Yes, the original playtesters did truly playtest the game.) This brings up the first question about milling