Commission for Nikolai Clarkson, on FA, of their wah being ambushed by a squeaky 2-headed Cerberus.
part 2 of 2

The resulting Cerberus takes on some minor traits from the absorbed victim.

A three headed Cerberus is clearly more happy, whole even. Eventually though the same element that made it whole, the absorbed spellfluxed, will regain control and the original threat of the 2-headed cerberus will expire even if the shape persists for a time.