Thank you! The "Hyperfixate on Bat Curses" step was what I couldn't figure out; most of the other stuff I already did even in the course of a normal run. Except for the spying... that I find only rarely useful, especially in the early game, especially if I have any amount of Bat Curse. Oh, and yes, you CAN have enough or even too many Mausoleums... once they start getting in the way of placing other things! 3 level 3 Mausoleums for a total of +12 gold per turn was about the limit. But anyway, yeah, with a full set of level 3 Bat Curses, this was trivial:
