Treacherous Bond

If successfully cast, pick 1 friendly TZEENTCH MORTAL unit wholly within range and visible to the caster. Until your next hero phase, while that unit is within 9" of the caster, before you allocate a wound or mortal wound to the caster, or instead of making a ward roll for the caster, you can roll a dice. On a 3+, that wound or mortal wound is allocated to the TZEENTCH MORTAL unit you picked and cannot be negated.