WARCANA - Campaign Mission 7: Burial - playthrough (no commentary).

I made an absolute mess of the end of this (sorry for all the pausing in the last round was considering going back to the main menu to retry last round) but got the win in the end. The key strat is getting to Star Eaters and the top tier devastating rift spell rather than going for an early rush, which means you need a lot of mana.

I also got many of the harbingers barracks set to spawn a certain amount of them every time the barracks survived. The early units and barracks making a rush strategy seem viable are mostly a trap, they cannot deal with the kind of fortifications you are dealing with, and the black hole spell is also kind of a trap, it's not powerful enough to even kill the walls on its own, so getting loads of black holes will make your deck weaker too.