Ion Bombers are equal to Heavy Bombers in Armour, Power, and hangar space but hold two distinct advantages over them. First, they have 1 shield and second, 50% of their Power passes right through Shields. This doesn't get affected no matter the ship, so it will hurt a Death Star just as much as a Heavy Cruiser. This is the Cross Shield Effect. These ships are best used against lone capital ships. How to counter: Anything except capital ships