Instead of firing a weapon the model projects a siren song up to 12" at a single enemy independent character or unit that is not in close combat. Make a Leadership test for the model or unit affected. If they fail they must immediately move D6" toward the model, stopping 1" short of any Chaos models they encounter and ignoring difficult terrain penalties.
Building an army? Create, validate and share your list with New Recruit, army builder for Warhammer 40,000 3rd Edition and many more games.
Try the builder