Mages are notoriously fragile creatures. They can call forth torrents of molten rock, summon storms, change iron to gold, it makes sense the universe has checks and balances to limit their power. Most mages solve their lack of physical strength with strategy and magical prowess.

Others hire muscle to accompany them. In this case, Karlach hired herself. She delights in being helpful, in protecting you.

Walking through the wilderness of Faerun, you stumble across a patch of mud. Crossing it would mean getting filthy. As you're considering the best way to get past the marshy ground with minimal damage to your robes, you're scooped up into the air.

Karlach threw you over her shoulder. She threw you over her shoulder without any prompting. She shoots you a smile brighter than the sun, adjusting her hold on you.