I recently noticed that there are just 3 classes which can use a mace (was looking it up, since I was considering to build Eureka): Guardian, Warrior, and Revenant.
Just 3 classes and all of them are heavy armor classes? This is kinda sad. I hope that we can get an elite spec in the future that uses maces, preferably on engineer (Alchemy theme?) and both as mainhand and offhand (if Spellbreaker can get both for dagger, then other classes can as well).