[Illuminated One]

Heck, the Bogarus thread actually gave me an idea.

Recruit two Occultists. Recruit a Fivefold Angel and some stealthy units.
Research Blood 1 and get some bloodslaves (doable with powerful sage god and not so bad scales or maybe fountain of blood).
Additionaly get an indie commander/scout to carry bloodslaves.
Fivefold Angel gets the stealthy units and sneaks into the indie province.
Occultists attack the province with (Call Lesser Horror)(Retreat).

Next turn: Take one of the stealthy units from the Fivefold Angel away and drop it into the province (empty province + your unit in it = your province). FA sneaks into next indie province with the rest of the troops, Occultists attack it. That way you are taking one province each turn with an "army" assembled in three turns for the cost of 2 bloodslaves. Only stop when you run out of blood slaves and let your mages bloodhunt.
That's beautiful you're expansion armies are bloodhunters, lab/temple builders and researchers once you stop expanding.