It's been interesting to watch this old staple fall out of favor with a lot of people. EC negation and protection of souls has become more prevalent, and added to how people approach defense in the meta, Uzzah has been on the decline.
However, he's usually good for a block at some point in a game, particularly if you have artifacts that are going to be more situational. For instance, if you include Three Nails in your deck, an Uzzah may not be a bad idea for when you don't hit demons.