Infrared Scan: Upgrade/Evolve:

Muscular Augments
Grooved Spines
Lurker Aspect
Muscular Augments Grooved Spines Lurker Aspect

Cost: 100 50
Hit Points: 850
Armor Type: Heavy
Armor: 1

The Hydralisk Den allows the Larva to morph into Hydralisks. Also, to help along the evolution of the Hydralisk, the Hydralisk Den can also provide the genetic code necessary for Muscular Augments (faster movement), Grooved Spines (longer range) and the Lurker Aspect (allows Hydralisks to morph into Lurkers).