Arctic Zerg Creep Tumors are basic in constructions of this strain. Each color of the gem as core of the Tumor decides about what structure the Tumor becomes next. Until that, the gem is transparent like glass.

Arctic Zerg Drones are basic in the strain's original units. Standardly, they're basic for structures in the end. However, like Dominion Laborers and Dominion Troopers, Arctic Zerg Drones can switch between modes, making them both worker and combat units.

(Zerg Creep Tumor and Zerg Drone belongs to Blizzard)