Just like with Brelyna, after the " Under Saarthal " Quest, this quest becomes available. Locate and speak to J’Zargo . He also has problems with his spells, so agree to help him to receive 10x "J’Zargo’s Flame Cloak Scroll" . These are very powerful Scrolls.
What you need to do is to test if the spell works how it’s supposed to. What we need to do is to kill 3 Draugr with the scrolls to finish the quest. Go to any Nordic dungeon where the Draugr are located, equip the scrolls and use them to kill 3 Draugr. You don’t need to kill them together or anything of the sort, just kill 3 and return to J’Zargo…
These scrolls pack a punch for you AND the Draugr, so be careful when using them. You may need to heal yourself while using them . Just be careful and keep an eye on the old health bar.
After J’Zargo apologizes, he’ll agree to follow you in your quests, if you so desire, becoming a companion choice .
Available: After the College Quest: Under Saarthal .