This works for both hunters and Minstrels and it doesn’t require potions, just skills

Simply start attacking from range, let the Gorthorog to get closer and when you are at 75% morale use fear (bards arrow or cry of the valar) to fear it. Let it get some ranged space and repeat. You should take him down in 3+ fear attempts.

Try to do it this way (fearing when loosing 25% of morale) since fear may be resisted so you will have to take some punches

Also, for hunters, try this where the mob has no other mobs around that can be aggroed when in fear

Tags: fear, gorthorog, Hunter, level 50, Minstrel, solo, Solo Combat