I mean traditionally rangers are sort of like survivalists or elite hunters. They're skilled at things like navigation, hunting, trap-making, and wilderness survival. Shapeshifting is a druid specialty and would most likely be a magician sub-class; but creation of herbal medicine is easily within their realm of expertise.

More typical combat abilities for Rangers are things like marked targets and trick shots (things like shooting someone in the foot to pin it to the ground), and they oftentimes gain some sort of bonus when in a specific terrain.

They also tend to have an animal companion; a strong and specially trained creature which aids them in combat.