Realm of Chaos: Slaves to Darkness (1988), p125 — 586-590 Magic Immune

Magic has no effect upon this mutant. It automatically passes any Will Power/magic test required as a result of spells cast against it. A save may also be made against magic not normally allowed a saving throw, although this is not automatically successful. Magic and enchanted weapons (other than Daemon Weapons but including Chaos Weapons) are treated as non-magical when used against the mutant.