Thundermace

Armour Bane (1), Magical Attacks, Requires Two Hands, Strike Last

Rather than attacking normally, the wielder of the Thundermace may choose to make a special ‘Thunderstrike’ attack. If they do, make a single roll To Hit. If this is successful, place a small (3") blast template so that its central hole is directly over the centre of the hit unit. Any enemy model whose base lies underneath the template risks being hit by this weapon.