Anything that enters the range of the ability will not have any passive regeneration. This also limits abilty usage to what antimatter (AM) the ship had when entering the range. When dealing with a capital ship, the stoppage of AM regeneration is easily the most important aspect of this ability. At 5 minutes duration, this ability used to be one the most powerful in the game, allowing even the pursuit of crippled enemy capital ships. In Rebellion however, it last only one minute, making it basically just a defensive ability, but still a potent one, comparable to having a Kortul Devastator's Disruptive Strikes, but in a cheap and resilient structure.