@JeremyECrawford Does the Sword of Life Stealing activate on a crit, or just a d20+attack modifier roll of 20?

— Jason Flowers (@jasonmflow) July 11, 2016

The sword of life stealing activates when you roll a 20 on the d20. The same is true of a vorpal sword. #DnD https://t.co/zw8hRDN448

— Jeremy Crawford (@JeremyECrawford) July 11, 2016