I haven't looked at them myself yet, but the sorcerer that can steal peoples HD to power their magic. That doesn't sound boring in it is surface (like I said I haven't read the subclass yet).
No, 5E does not have anything like that.
Hiwrver that is how the developers described it several years back. It might’ve been a Sage Advice or something like that, but I just remember the developers talking about it.