Designed for anti-vehicle and siege work, the Castellan is an assault Robot useful for a wide range of battlefield roles. Its twin [[power fist]]s and [[heavy bolter]] give it a dangerous punch, protected by a power field/synchroniser unit. It can subsitute substitute its heavy bolter for a [[lascannon]], [[melta gun]] or third power fist, while the standard fists can be replaced with a [[Siege Hammer]], [[autocannon]]s and [[flamer]].{{Fn|1}} The most numerous pattern of Castellan Class Robot are the '''Castellax Battle-Automata'''{{Fn|2}}, which are designed primarily for siege and shock assault operations and are known for a particularly aggressive [[Machine Spirit]].{{Fn|2}} ==Images==[[Image:CastellaxBA.jpg|thumb|center|195px|Castellax Pattern Robot{{Fn|2}}]]