I tried using him in the spiral abyss, and I must say, when it comes to mono-geo teams, his performance is phenomenal. Genshin Impact has started releasing niche element supports like Gorou and Kujou Sara, so we may see another element supports coming down the line. With that being said, if you are pairing Gorou with defense scaling characters like Arataki Itto, Albedo, or Noelle, you will see good results. But this doesn't end here; I particularly used him for the Geo damage bonus for my burst comp, where I used Ningguang ( C6), Zhongli, Gorou, and Geo main Traveler. The team obliterated enemies in one rotation, and I could clear floor 12 without any worries. These teams are good where you only need raw damage to deplete enemy HP bars quickly. Suppose you are against two ruin guards, then a team like this can finish them off just in one rotation with optimal artifact set and weapons.