An Iron Daemon is a steam-driven traction engine of truly incredible power, capable of hauling tremendous weights behind its armoured bulk.
During the Movement phase, up to two friendly war machines with the ‘Steam Carriage’ upgrade that are completely within this model’s rear arc and within 8" of its base at the beginning of the phase can be moved when this model moves. These war machines must finish their movement completely within this model’s rear arc and within 8" of its base.
Unless this model moves using the Lumbering Destruction special rule or makes a charge move, these war machines are not considered to have moved this turn.