Oh. Oh dear. That-that seems like quite the problem. You're a-a vampire hunter back in your world then? [ Helios knew of them, but he never really associated too much with them. The hunters guilds and families were all very secretive and with good reason. ]

Neither, really. It's normally taught to all magical abled people. There's public and private schools in the magicking community that teach children it, no matter their family lineage.