Mutated Monstrosities. When a giant vulture gorges on undead flesh, the necromantic magic suffused in the meal warps and changes the bird's body. The vulture's muscles bulge in odd places, making it stronger and tougher, its eyes burn with green fire, and it reeks of rot, earning these mutated monsters the name "death vultures." The vulture also gains the ability to regurgitate necromantic energy, which can cause the flesh of living creatures to decay and age rapidly.