We can make a conditional division. A unit has a move bar – for humans, 2/3 of this bar is used for movement during the day, and 1/3 at night; for necromancers, it's the opposite. But each hero will have a changing day/night cycle, with a maximum of 8 heroes and 8 shifts. If we completely eliminate switching between heroes during a turn, wouldn't that be a silly idea?
Or, perhaps we should divide the turn into 2 phases. Humans move more during the day (spending 2/3 of their move bar), and necromancers at night. But then there's the issue of delaying the turn for the Dungeon faction; if it only moves at night, it can be easily defeated during the day, and you won't be able to catch it at night. In short, one problem leads to another... That's why