The Ultralisk is a very powerful ground to ground unit. It is expensive to make but with some Hydralisks a squad of them can kick butt. If you have Brood War I suggest you upgrade speed and armor for the Ultralisks at the Ultralisk Cavern. Ultralisk's are very good against heavy defense implacments such as Sunken Colonies, Bunkers, and Photon Cannons. They can also withstand a lot of damage allowing them to quickly move in and attack some Siege Tanks or Reavers.
