Okay, I'm confused. I downloaded this pokegra.narc from the /ppg/ discord, dated 12th March.
https://cdn.discordapp.com/attachments/697478032528506900/736373782330998864/pokegra.narcLooking through it, though, the sprites for the kanto starters (and probably others) don't match up with the ones from that old leak, or the ones in the rom. If this file came from the leaks that were posted, where did the rom come from?