If your speed is reduced to “0” by Sentinel feat, dash action will give you “0”, not your original speed, that’s correct?

then if your speed is reduced to "0" by sentinel feat, dash action will give you "0", not your original speed, that's correct? @mikemearls @JeremyECrawford

— Arturo Alf (@Alfpirro) July 30, 2018

That’s correct.

— Jeremy Crawford (@JeremyECrawford) July 30, 2018