He can see clearly in the dark, so it's not even that. Blind maneuvering doesn't even remotely cover what he's capable of (there's not really an accurate D&D skill for it either). And it's only one thing amidst everything else, it's just what was focused on the most in the books while he was alive. Most everything else we learn from people talking about him and what he was able to do.

Also I was talking with someone about him training them in martial weapons as he is a weapons master and training people is what he did. How would that translate into skills since D&D Fighters learn ALL the weapons. I know one skill could be Drow: Twin Weapon Fighting because that's a specific to his people(and like one other place) thing that's not widely done.