800 (night), 1400 (day)
The hydralisk is a an Easter egg unit in Warcraft III. Its attack animation had the shoulder plates opening and releasing a quickly dissipating green mist.
One may be rescued in the Reign of Chaos mission Daughters of the Moon. It is hidden in the forest north of the final undead camp. The trees hiding the unit may be destroyed with rescued ballistae. Hydralisks are also used in the credit animations if the game is beaten in hard difficulty.
The model is used for the "Venomancer" hero in Defense of the Ancients: Allstars.