Magmalings are created from Zerglings following a brief chrysalis phase. In the new form, the Zergling's claws shrivel and become withered, and a swollen sac filled with molten chemicals grows out of its back. Magmalings can waddle, but after an evolution they can tuck into a tight ball and roll around the battlefield. The creature's only form of attack is to trigger a reaction within its chemical payload that causes it to explode with devastating force and shower the immediate surroundings with a searing chemical quite similar to lava.