Would you say Chain Lightning is 1 dmg roll for each target or all targets?

@Moonternitywould you say Chain Lightning is 1 dmg roll for each target or all targets? wording of spell is confusing dm 🙁 roll once

— (((Mike Mearls))) (@mikemearls) January 2, 2017

@Moonternityfigured as much, thanks for your time! (on kind of a silly question in hindsight…) there are no silly questions on the road to enlightenment

— (((Mike Mearls))) (@mikemearls) January 2, 2017