It's a psychic type basic...
Its a Metal Type basic.
Otherwise it is as people have said. For the physical and online TCGs,
Jirachi is a reusable counter for Special Energy reliant decks. Even after
Puzzle of Time made it easier for things like Night March to reclaim
Double Colorless Energy, even though you can just use
Lysandre to force up something from the Bench while
Jirachi is invulnerable, it disrupts your opponent significantly. Plus you can slip it into almost anything, so (for example) sometimes you won't be able to use
Puzzle of Time because of Item lock.
The PTCGO is an odd example; this card has been made available for purchase in the online star multiple times; you get it and some virtual booster packs. You can buy them with Tokens but they won't be available for trade. I saved up and bought four the first time it was available. XD I guess a lot of folks didn't, or simply couldn't. I mean you've got the busy (there are weeks I barely touch the PTCGO), or when you're just not winning (and thus not earning many Tokens), and
hopefully it means a lot more people are joining the PTCGO and they just weren't there when it has been "for sale".