@JeremyECrawford: If a vampire bites a charmed target, does that count as harmful, thus granting the target a new save against the charm?
— Jonathan Longstaff (@pukunui81) March 29, 2017
Dealing damage to someone is, indeed, harmful to them. #DnD https://t.co/lrrDPU74CO
— Jeremy Crawford (@JeremyECrawford) March 30, 2017