Jurda parem seems to be one hell of a drug. One dose is enough to make a Grisha addicted? And the way it amplifies/changes the Grisha's powers? Imagine going from creating currents to changing your own physical state. Or from healing to mind control.

Speaking of mind control: I'm kinda sad Anya and Joost are dead. They could've been cute together...Idk how much Anya reciprocated Joost's little crush, but perhaps they could've been a cute couple. Oh, and I assumed they would be part of the gang, so yeah, I guess they won't.