Regarding magic missile Jeremy Crawford Roll to keep concentration for each hit. You say for purposes of dmg/death it’s 1 hit.
Jeremy tends to use existing rules and extrapolate from there. I tend to build on my programmatic understanding of underlying design intent.
— Mike Mearls (@mikemearls) September 11, 2017
That’s why he’s a better source for how the game works as published – I’m better versed in the concept/structure than the final execution.
— Mike Mearls (@mikemearls) September 11, 2017