As promised, all heroes in Heroes of the Storm are free to play all weekend, along with a 50% XP boost for all players in Blizzard's MOBA. This post has all the details:

It’s all come down to the final four teams, who are right now hard at work preparing for this weekend’s grand finale of Heroes of the Dorm 2016 in Seattle. To help celebrate their victories, and the incredible efforts of every team competing in this tournament, we are making every Hero available to play completely free and granting everyone 50% bonus XP!

Log into Heroes during the following time frames to take part in these events:

Unlocked Heroes Event

April 8, 10:00 a.m. PDT (All Regions) - April 11, 10:00 a.m. PDT (All Regions)

50% Bonus XP Event

April 8, 10:00 a.m. PDT (All Regions) - April 18, 10:00 a.m. PDT (All Regions)

Don't forget to make the most of the event by inviting a friend and you'll both gain a 50% friend bonus on top of the event XP for every game played in a party together!

Now is the time to hop in and find a new favorite Hero, check out some new team compositions with some friends, and celebrate Heroes of the Dorm by enjoying bonus XP!