Star relic

The Protoss Star Relic is a flying unit in StarCraft II that, like the Arbiter in the original StarCraft and Brood War expansion, cloaks nearby unit. Unlike the Arbiter, however, the Star Relic will cloak buildings as well and is armed with a Fusion Beam which will slowly drain away the hit points of a target and, when the last hit point is consumed by the Star Relic's fusion beam, the targetted unit will explode, causing damage to surrounding units and doing more damage the stronger the target.