Relic: The Eye of Hypnoth, Imperial Fists

A model with the Eye of Hypnoth can use it in place of making a shooting attack. If he does, target an enemy unit or building within 18" (this does not count as choosing a target for his unit to shoot at). A unit targeted by the Eye of Hypnoth has its cover save reduced by 1 until the end of the phase (this is not cumulative with the similar bonus granted by an Auspex - see Codex: Space Marines). A building targeted by the Eye of Hypnoth instead has all of its Armour Values reduced by 1 (to a minimum of 1) until the end of the phase.