Creatures mutated by arcanowave to the degree that their supernatural essence has changed, forever marking them as unnatural and unwholesome beyond even normal Monsters. Just as normal humans fear and loathe the supernatural, Monsters are spooked by abominations. They are tied to their Arcanotech implants and thus to their physical form.
Abominations have Creatures powers and Arcanotech implants. They always have SupernaturalCreature but never Spirit. In addition, they have Abomination and often CerebralGrepper, too.