Harvest is a pure control card that you use in the lategame with a built up mana base, whose floor is raise dead. As long as you have decks that can play toward both that ceiling, and that floor is reasonable, its a good card.
I left k command and genesis out because they are different cards. K command isn't a pure raise dead effect, and genesis is more like a static enchantment like oversold cemetary. I'm more interested in where cards like urborg uprising have a role, the answer of which is not in many places.