When Daenerys says "Dracarys" in Game of Thrones, the dragons almost always hit the target on point.
In Season 8, Episode 5, when Dany says "Dracarys", Drogon kills Varys by fire. But there were many people nearby, how did Drogon know who exactly to "Dracarys" ? What if he burned someone else by mistake ? What if Tyrion died or any of the soldiers?
Are the Dragons and Dany's mind connected so that the dragons know exactly whom/what to burn and how much firepower is required?
How does Dracarys work?
Mind connected example: In book Eragon, the dragon and the protagonist talk to each other in their minds