Vile Transference

Vile Transference has a casting value of 7. If successfully cast, pick an enemy unit within 12" of the caster that is visible to them, and a friendly DEATH unit within 6" of that enemy unit.
The enemy unit suffers D3 mortal wounds.
Then, for each of these wounds that was allocated and not negated, you can heal 1 wound allocated to the friendly unit.