The advantages of the Reflex Shield technology fitted well with Corax’s ethos of war, allowing Raven Guard starships to approach their targets unseen, and strike swiftly and decisively before withdrawing. The low energy requirement for the use of the technology meant that such stealth could be maintained almost indefinitely. There was, however, a serious downside to their use. By employing its Void Shield generators for the projection of Reflex Shields, a Raven Guard vessel had no defence against physical attack and it took time to switch the generators from one state to the other, leaving a warship vulnerable for several minutes with neither its cloaking field nor its energy barriers fully operational.