Hi ! To start, well done to both of you
I have a few thoughts about the faction, maybe it can help you if you want to keep working on it after the jam !
1) My biggest concern is what can you do if you play against factions with no or few buildings ? From my understanding there are no other ways than destroyed buildings to produce loot. Perhaps there could be another way to get loot so that the faction is less dependant on other factions having buildings ?
2) Summon action : maybe rephrase with the keyword "place"
3) The way to slow them down is to hit their warriors right ? Maybe loosing some capabilities if you loose the mound ?
4) maybe i would call the loot token "markers" rather than "token" as your opposent can't really do anything with them.