@JeremyECrawford Re: Heat Metal. Does target need to be in range (after initial casting) to use bonus action to do additional damage?
— Steve Scholz (@dmwants2know) January 28, 2016
Once a spell is cast, its effects aren't limited by its range, unless its description says otherwise (PH, 203). #DnD https://t.co/fwQbXi1ptA
— Jeremy Crawford (@JeremyECrawford) February 3, 2016