I tried different strategies without Necropolis, and it gave me 1 stack and Rion.
But I also had a hidden Pikeman, Tazar, and stables, and then the Necropolis units started appearing. On map 121, I got lucky with the Conservatory-1, then immediately got a level 2 building, and everyone scattered, and Conservatories and resources started appearing, but we didn't let the opponent get any land or the Grail.
Thanks for the game.