Blizzard has unlocked every Heroes of the Storm character for this weekend until 10AM Pacific on Monday, April 11.All players will also receive a 50% experience boost until 10AM Pacific on Monday, April 18.These limited offers coincide with the currently ongoing Heroes of the Dorm tournament, where the winning team earns free tuition for the entire college career. Those online who fill out the most accurate bracket will win $10,000, and the 500 runner ups will get an Azmodunk bundle in the game.