Hearthstone Beta – What do you get with a 12-2 Arena Run? Written by Andy Go on December 13, 2013. Posted in Hearthstone: Heroes of Warcraft Due to the new patch Arena has new changes: -The number of matches you can win in Arena has increased to 12 (up from 9). -Arena rewards have been restructured. So what do you get in a 12-2 Arena Run? Credits to eliffant Andy Go Be Sociable, Share! Tweet No related posts.