Some Screaming Skull Catapults fire the cursed skulls of fallen enemies, making the tormented screams of the grisly ammunition all the more terrifying. This upgrade adds an additional effect to the catapult's Screaming Skulls. If a target unit takes a Panic test as a result of being hit by the Skulls of the Foe, then they must take the test with a -1 penalty to their Leadership.