Thunderfire Cannon (Main Gun)

Cover saves cannot be taken against Wounds, glancing hits or penetrating hits caused by weapons with the Ignores Cover special rule.

Any non-vehicle model that suffers one or more unsaved Wounds or passes one or more saving throws against an attack with the Strikedown special rule moves as if it is in difficult terrain until the end of its next turn. It is a good idea to mark affected models with counters or coins so that you remember.