Is Heroes of the Storm reward "Hearthstone card mount" still available?

Hi, I would like to know if it is possible to obtain Hearthstone card mount in HotS by winning 100 games in Hearthstone.
Also, If yes, then how to track reward progress? What type of games count towards it (only ranked or both casual and ranked), and is the Easy Rider Quest still in the game considering the new questing system. Thanks.