League of Legends was announced couple months ago but I just realized Pendragon_ and Guinsoo are among the people behind this, so guess it might be a must trying

Current status is open for closed beta sign up, with the latest update and trailer -
Can be seen here the game has a more cartoony look
if you were intrigued just signup for your closed beta account at
http://www.leagueoflegends.com/beta.php xD