Curate, connect, and discover
I've got this dumb little headcanon that Nightshade is very sensitive to impurities in the water or energon they consume, and so if there is any contamination to a batch of energon, Nightshade lets them know by coughing it up as a pellet, like owls do.
The first time it happens, they just hear Nightshade start coughing, and then suddenly it just falls out and everyone's asking Nightshade why they've been eating rocks-