Tuning and balancing is a big part of creating a fun multiplayer experience, and Blizzard has been doing just that with the new multiplayer units for Starcraft II: Heart of the Swarm. This video shows the latest updates and changes to expect in the upcoming installment.

The video comes courtesy of a blog post from Blizzard, who wanted gamers at home to able to see the changes that are being unveiled at the MLG Spring Championship.

For more Heart of the Swarm, here are some screens and a trailer for your viewing pleasure.