The following section contains information from a previous version of StarCraft II which is no longer valid.
The star relic was a protoss aerial support unit in the development of StarCraft II. It was later canceled during development and replaced by the stasis orb, which in turn was cancelled and replaced by the disruptor (now the sentry).
The star relic cloaked nearby units and buildings when it was stationary. It had the Detonate ability and cast the hallucination spell. It was warped in at the stargate and required a fleet beacon to be produced. The fleet beacon researched its special abilities.