@JeremyECrawford enemy is adjacent to pc, casts invisibility, and moves away from pc. Does pc still get AoO?

— Timmy (@TTVsTimmy) June 16, 2016

You can make an opportunity attack only against a target you can see (see PH, 195). #DnD https://t.co/zXPwqAklxP

— Jeremy Crawford (@JeremyECrawford) June 16, 2016