In your Shooting phase, after this model has shot, if one or more of those attacks made with its earthshaker cannon scored a hit against an enemy Infantry unit, until the start of your next Shooting phase, that unit is shaken. While a unit is shaken, subtract 2" from its Move characteristic and subtract 2 from Charge rolls made for it.

While this model has 1-4 wounds remaining, each time this model makes an attack, subtract 1 from the Hit roll.