Place the large round template in base contact with the Grey Seer to represent the huge mass of rats summoned by the spell. Then move the template in a straight line 4D6" away from the Grey Seer. The template can cross any type of terrain except castle walls and water features. All units touched by the template, even if only grazed, suffer 3D6 Strength 2 hits the caster is never hit and a unit he is in is hit only if another of its models are touched by the template). The spell then disappears. If the caster is engaged in close combat and casts this spell, no template is used. Instead, roll 3D6 and distribute the hits evenly among all units engaged in the fight (friend and foe). The caster himself never suffers hits from the Vermintide - don't allocate any hits on him, even if he's alone.