Hi again,
I repeat that I don't see any issue with either DB or Warlocks : those guys are tough, and their use is forging, rituals and army support (more for DB than W). They are capitol only, and expensive, fine. Using them for research or hunting is a waste...
The only problem I see with Aby is that the Warlock *Apprentice* are capitol only, and as they are needed for research and hunt Aby usually must sacrifice one for the other to a point I don't think is balanced - usually Aby *has* to find a Library to keep its research on a correct level. I remind a game I've won with Aby but my research was abysmal just because I did'nt manage to have a single Library on my continent !
Apart from that Aby don't need any boost IMHO ... Ppl should rather turn their attention to those poor TC and Ulm (standard theme)
!