Drifter's voice lines in Gambit just make no sense - you kill one envoy, hear Drifter say all of them are dead, start damaging the primeveal but look! There's one more hiding god knows where! Sometimes he even says the voice line [b]right after the primeveal spawns![/b] I kinda got used to ignoring him and checking the buff myself but still, it's really confusing, especially for new players.