Eruption of Apoplexy

Pick a friendly Gorechosen Champions Priest to chant this prayer, pick a visible enemy unit within 12" of them that is in combat with a friendly unit to be the target, then make a chanting roll of D6.

Inflict D6 mortal damage on the target. If the target is destroyed, before removing the last model in that unit from play, inflict D3 mortal damage on every unit (friendly and enemy) within 6" of that model, or D6 mortal damage instead of the chanting roll was 8+.