How does the Lurker work?
The Lurker is mutated from a Hydralisk, much in the same way as Guardians are currently created. While the Lurker does not have an attack in its mobile state, it does have the ability to attack once it is burrowed. This attack is a series of spines that rip through the ground in a straight line from the Lurker to the target, out to its maximum range. Every enemy unit in the path of the spines will take damage. This is a natural ability of the Lurker and does not have to be researched.