The Fire Breath keyword allows a figure to spend a to make an attack that hits 4 additional spaces, with each space after the first being adjacent to the last. All figures in those spaces become targeted or affected by the attack and must roll defense dice separately.
Ability text: Fire Breath: Starting with the target space, trace a path of 4 spaces in any direction. All figures on this path are affected by this attack. Each figure rolls defense dice separately.