Olaf, Baleog, and Erik from the 1992 SNES classic join the fray in HotS's battlegrounds.
The latest patch notes say that the trio are made up of; Olaf - the tankier of the three, has lots of health and regenerates quickly, using a charge to slow enemies; Baleog - hits with splash damage to enemies behind his target; and Erik - the quickest of the group with an longer attack range.
Take a look at the full list of patch notes over here, it's pretty long.
A new trailer showcasing The Lost Vikings has been released, which shows them working together to fight off enemies, and even gives a nod to the original game from 1992 at the end.
Blizzard are set to host a livestream on Twitch tonight at 7pm GMT, which appears to be all about the new viking heroes.