That's a really good idea - I'll have to do that! Or maybe my pokedex might have information?

Yeah! It's a card game back on Alternia. You each get a hand of cards, and then you throw an Oogonibomb to hatch a Fidusucker, and then you need a Host Plush, and eventually you'll breed your Fiduspawn! [ It's more complex than that but she's pretty sure humans don't play it at all, although this Pokemon breeding is...similar, in some ways. ] Tavros was really good at it.

And yes, I mean the others I played the game with. Right now...Kanaya, Tavros, Feferi, and Terezi aren't here.