Riot Games released the open beta for its hit game League of Legends for the Macintosh platform yesterday.
The Mac version does everything the PC version does. This means you will get full features, patch and content update at the same time as the PC version.
Since it is still open beta, expect a few bugs to pop up, but the people at Riot Games are pretty amazing at squashing these things as they come up.
You can get the Mac version at their download page. See you on the field of honour!