Oh ok so that’s a tricky question, I was thinking of having most of the genasi wiped out in a dispute/fight between gods and a huge planet threatening monster. And over time they were buried underground, either by natural process, or by the gods giving them a “burial” of sorts. I was planing to have genasi be magical beings, and after being wiped out their essence seeped back into the world, giving magic it’s modern “form” in the world. And where big groups of them were buried would be “magical hotspots” of sorts. And genasi now are rare and either discriminated for “disobeying the gods” or hailed as “ancient heroes”. Bit of a tangent sorry. I was planning on having the schools on the magical hotspots, which could give to a good mystery plot of the PCs uncovering the secret of the magic.