[Amorphous]

Assassins can also be quite efficient when taking some cul-de-sac provinces. Unfavorable terrain in combination with general map layout can sometimes mean a delay of several turns for ordinary armies that could be used for something better.


Assassins can also be devastating in an early war. If you get an early second castle (e.g. from site searching) on a crowded map, you may want to hire a few in preparation of an impending war and they can be put to work on expansion in the mean time. It is not efficient purely in terms of indie expansion, but the strategy as a whole is.