I think "resistance to all magic" will be partial, and they will also have to spend levels and skill slots on these abilities...
I understand that in the skill wheel, instead of magic, Orcs will have corresponding resistance (instead of dark magic - resistance to dark magic, etc.), so reaching the corresponding level of resistance will not be that easy...
Or am I mistaken?
Асха - Порядок! Ургаш - Хаос! Силат - Воздух!
Шаласса - Вода! Аркат - Пламя! Силанна - Земля!
Сар-Илам - Дракон-Маг! Эльрат - Свет! Маласса - Тьма!