u/Elder_Demon

My players where just talking to me about my combats. They where saying that it feels like the fights are just cool abilities and not much moving, as I hit, you hit and so on until one of us dies. I know I could add in legendary actions or lair actions but I am not sure how to add them without the actions diminishing there's. As most of these achions are for CR 10+ as they are lvl 6 I am not sure if i can add them. Any ideas or pointers?