Character development, coming up with complex character backgrounds (giving them a history and personality), plot twists, dialogue and internal monologue, describing a setting, describing how a character feels, what they see, hear, etc., writing multiple characters in a story, adding new ideas to a story;
I often don't like my posts, I am my own, worst critic and I generally think that I am a boring writer and not a good writing partner. I know nothing about fandoms, I don't do system games. There is much I don't care to write about/know nothing about. I am a slow poster, most of the time.