A collaboration between legendary card game designer Richard Garfield and Valve, Artifact is a digital card game that combines deeply-strategic, competitive gameplay with the rich setting of Dota 2. Artifact is an immersive and visually-stunning trading card game unlike any other.
The website includes a general overview of the Dota themed card battling game. It also includes the first in a set of video blogs from the game's designer, Richard Garfield. But since I like ya, I'll embed that video below.