Update 19 is now live! This update includes the addition of the warrior profession, with a new deck and new abilities (unlockable by constructing the Barracks building in your academy).
Update 19 includes a ton of other changes. The full patch notes are available on our development blog.
Note: The warrior will likely change a lot from this first implementation; we're looking for feedback on the warrior cards and abilities, so don't get too attached to anything the warrior currently does or does not do :)