Rip field

Rip fields are pieces of xel'naga technology that at least one of their space platforms are outfitted with. They have the ability to warp time and space.

Game Effect
One of the missions of StarCraft II: Wings of Liberty will take place on an ancient xel'naga space platform. Rip fields damage all units that enter them and continue to do so as long as they remain within its area of effect.