yuriy, there is a mentor in the campaign. And you can definitely get a Skill Artifact (SA) in the second or third mission.
However, in the original campaign in version 3.0, I wouldn't risk leveling up Zehir to get an SA. In the second mission, Zehir should already be a level 10 combatant. And without strong spells, it's difficult for a mage. In general, playing any race, I feel very uncomfortable without high-level spells.
Auto-translated