The Frostling evolves from the Zergling like the Baneling and some other unique strains from the special broods. Its sacs contain a cold Cyan harzadous fluid similar to liquid Nitrogen, which can freeze enemy forces in cold snap through its self-destruct attack. Frozen units are so fragile that even a Zergling can break them down in a single strike. (Red Alert 3: Cryo Legionnaire) Ground units with different sizes takes different amounts of Frostling explosions to be frozen. small units like Marines, Marauders, Zealots, Stalkers, Hydralisks and Zerglings can be frozen by a single explosion while medium-size units such as Hellions, Siege Tanks, Immortals amd Infestors can be frozen by two times of explosions. The massive arsenals, including Thors, Ultralisks and Colossi takes 3 explosions b