Final answer:
Cypher's Neural Theft (X) ability in Valorant has an approximate cast range of 30 meters, allowing him to reveal the locations of all living enemy players by using a dead enemy's corpse within that range.
Step-by-step explanation:
The cast range for Cypher's Neural Theft (X) in the game Valorant is not a static value and has been subject to updates and balancing changes over time. As of the current knowledge cutoff in 2023, the cast range is approximately 30 meters. This range allows Cypher to use his ultimate ability, which reveals the locations of all living enemy players by extracting the information from the corpse of a recently killed enemy. It is crucial for Cypher players to be aware of this range as it determines whether they can safely and effectively use Neural Theft from their current position.