One key element is their connection to nature. They rely on the forest for everything. Another is their sense of nobility, which comes from their long - standing traditions of protecting the forest. And of course, their magical abilities are important. They can use nature - based magic like controlling plants or communicating with forest animals.
Well, in the noble wood elf back story, first there's their bond with the forest. It's a symbiotic relationship. Then, there are the stories of their ancestors and how they passed down the knowledge of the forest. Their battles against those who would harm the forest are also key. For instance, they might have fought off an army of orcs that wanted to cut down the trees. And their spiritual beliefs, which are tied to the forest spirits, are an important part of their back story as well.