The doppelganger is a reclusive creature whose sole means of procreation is to assume the identity of a dead creature and breed with members of that species. The doppelganger, in natural form, appears as a grey-skinned human with few developed facial and body features. Once a doppelganger assumes a new form, he resembles his target almost perfectly, and also acquires all the skills and abilities of the one he has replaced. A recent mutant species has developed, with the ability to replace any dead teammate at will, at any time. Each new form can only be used once per war, however.
Command: replace <teammate>
The doppelganger can replace a deceased teammate, assuming his race and class. A doppelganger can replace more than one teammate, but can never assume the same form more than once.