Mystical Unforging

If successfully cast, pick 1 enemy HERO that
bears an artefact of power within 12" of the caster
and visible to them. That HERO suffers D3
mortal wounds and you must roll a dice.
On a 5+, that HERO no longer bears that artefact
of power (if a weapon was picked when it was
selected, the weapon reverts to normal).