The Lurker is a Zerg unit that may attack only when burrowed and is also able to burrow without the mutation being evolved. A Hydralisk can be morphed to a Lurker when a Lurker Den has been constructed. The Lurker deals damage to all enemy ground units and buildings in a linear attack, similar to a Hellion. Each spine that spikes out of the ground has an individual splash zone with a radius of 0.5. There are 10 spines in the attack that are each offset about 1 full cell from each other from the Lurker to the target unit. There is a 0.125 second delay between each protruding spine, resulting in a full 1.25 seconds to fire an entire line of spines. This makes it possible to dodge the outer spines with reactive micro.