In one melee turn, this mutation drains all but one of the hit points from all beings within 20 meters. When a being uses a death field, he is not affected by it except that he can do nothing else for 1-20 melee turns, as he will be lying on the ground, cackling madly drunk on the life energies they have just gorged on.

This is another 'popular' mutation, guaranteed to win many friends for the character that has it.