Be Careful What You Wish For: Dagur is elated when he finds out that they have Hiccup and Mirabel's kids as hostages. Or he was, until Drago makes him into Peep's glorified babysitter.
I Have Your Wife: When flattery fails, Drago falls back to threatening Peep if Karla and Pedro don't cooperate with him.
Drago: Those children are powerful... too powerful... In truth, there's nothing stopping the girl from just running away... Or the boy from conjuring himself a way to escape[.] The other girl is...incentive. As long as they believe her life is in danger, they'll do anything to keep her from harm. Including serving me. Once I've trained them into complete obedience, we can get rid of her.
Nice Job Breaking It, Hero: In an attempt at intimidating them, Karla ends up confessing to Dagur that they are Hiccup and Mirabel's kids, that Berk has dragons and that there is a village full of other magical users who would be more than willing to walk into whatever trap Drago and Dagur have planned for all of them to rescue them.
Pragmatic Villainy: While Dagur is perfectly willing to torture a child, Drago decides not to do anything to her, seeing no point in doing so to a bargaining chip.
