Be very, very careful when venturing in their territory, for if to many spawn you will be completely overwhelmed. If you have a team of tek tier players you could farm the big orange ones and get their venom ( if you can get down and back up alive)
WARNING: Never use rock drakes against them!!!!
These aren't really the people who touched the liquid element they are the smaller non royal reapers, there are the kings and queens and then the nameless are disposable warriors similar to how in an ant hill there is the big queen ant in the middle and lots of little workers and soldiers to do everything!