Nessa is the Water type gym leader of Hulbury in the games Sword & Shield, where she has team of Goldeen, Arrokuda & Drednaw, which is a decent team for being the second gym leader you battle against the games, but as long as you have a strong grass type, you're fine. However, Nessa's gym puzzle is probably my most favorite from all the Galar leaders, where you got to turn on and off valves controlling waterfalls to get across the area to reach Nessa, battling gym trainers along the way. As well, I would say Nessa could very well be my most favorite character design of all the Galar leaders, and think she has some decent dialogue towards the story in the games as well, barring just being a gym leader. Overall, Nessa is great, and I did heavily debate on putting her as my #1, but ultimately decided I love the other left a bit more.