With my 794.4 hours in Stellaris, I'm gonna translate what the robot says:
Legion node: Responsible for war and combat for a machine intelligence.
Casus Belli animosity: Declaring war cause they really dislike their enemy.
Raiding stance: An orbital bombardment stance where instead of bombarding the population into oblivion, you kidnap er I mean 'nihilistically aquire' the population and relocate them to your worlds (pairs well with rogue servitor so you don't need to use the galactic slave market to aquire more biotrophies).
Growth node: Responsible for managing the population.
Synthetic lathe: Pretty sure they misspelled 'Synaptic lathe'. A megastructure that uses organic or synthetic beings as living computer chips (that'll inevitably die) to research how to change the laws of physics and eventually decimate the entire galaxy. Don't think rogue servitors can take cosmogenesis though, but I've never tried tested it.