I like assembly and vanguard for heritor. Assembly let you instantly mod new drained units as they are acquired. Vanguard lets you park drained at a city and passively get them to max rank where they become more dangerous.As per title. Often the question is asked from a race point of view. I could not seem to find an answer from the secret tech point of view. All races considered which ones can make a good use of heritor secret tech?