From Stanley's surprise at a caster attuning to an Arkentool, I wonder if Charlie was a warlord before he became ruler, rather than a Thinkamancer. (Ofc, it is equally likely that Charlie's origins are just unknown, and Stanley just assumed he was a warlord).
Also, his capital
, seems more like an hidden base in the mountains, rather than a city (unless the Arkendish is much larger than the other 2 tools). What if he popped as a barbarian warlord who found and attuned to the arkendish and then found a deserted hex to setup his base. His mountain base could be his only city, and his only interaction with the world is via his units.