Like others have said, I use my max level team(s) for everything.

If its just dungeon farming for fun, which I do love, that is what timewalking was meant to be for. And Blizzard had it right when Timewalking was first released in 6.2. There was challenge, one pull at a time, even a CC here and there. But by the very next patch the balance was screwed up and its back to roflstomping everything.