Oh boy, if I were to list all the words or phrases they know... it'd be quite long!

Mostly they know anything food related "hungry, starving, dying" as in "the kities are dyyyyying of hunger! We need to feed them"

As for Mystic, he had his umteenth recheck. and again, lots of blood and still showing a bacterial infection. We have no idea what to do. We're sending his work out for a second opinion.