https://www.youtube.com/watch?v=icWqS9af6uc&app=desktop
Kindly refer to the first Vurtne pvp movie. Yes he played shaman first
Fast forward to 17:00 from there on he fights a few skull marked and red enemies and has not much resists against the red ones.
maybe this video helps somehow
Judging by the fight at min. 17 against that paladin, I counted he casted around 7 or 8 spells, and got 5 resisted. From my PoV, that's not "having not much resists against the red ones". Didn't watch the whole video though, only that fight.