When it comes to deck builder games, the genre has certainly grown over the years. The granddaddy of them all, Hearthstone set the tone and was certainly the most popular of the group back in the day, but Monster Train and games that have come after it has improved on it immensely. Even now, it becomes hard to really bring something new.
Source: N4G PC Monster Train Review: A New Take On A Well Traveled Genre| The NerdStash