Negative levels aren’t a thing in 5e. If I’m running an older module, how do I do -levels?#DnDOr rather, what's the best way to change or handle negative levels, say from an enervation trap

— Jon Dilley (@0Generic0) August 4, 2017

I'd treat it as damage that also reduces max HP until long rest

— Mike Mearls (@mikemearls) August 4, 2017