Neon Bromide

This entity is a strange Chemical compound made up of unique element.
Formula: Ne₄Og₁₀ Ta₉Br₂
Formula Name: Neon Bromide
This entity is very unique due to it latching on to a host and starting to radioactively decay them. The time the user has before death is 0.00001 nanoseconds. This entity moves with remarkable speed at 10mi/hr. The only way to survive this entity is to leave it alone in the containment room. If anyone dares enter the room may God have mercy on the poor soul.