The xel'naga tower (formerly xel'naga watch tower), also known as an observation post or observatory, is an ancient xel'naga structure. When activated, the observatory illuminates and crafts itself together into a watch tower.
The xel'naga tower (formerly xel'naga watch tower), also known as an observation post or observatory, is an ancient xel'naga structure. When activated, the observatory illuminates and crafts itself together into a watch tower.