The power to
become a mutated monster. Combination of Mutant Physiology and Monster Physiology. Not to be confused with Monster-Infused Mutated Physiology.
The user may be a monster who has undergone experimentation or a person who has undergone experimentation to become a monster. Their capabilities are much higher than their species and have been proven to be more resilient as well.
The effects may be deadly.
Cole MacGrath (Infamous) was turned into a vampire by Bloody Mary, essentially making him a vampire/
Mutant Zombies (Paranoia Series) like the Four-Armed Zombies, are possibly, normal Deviants that have been exposed to the R2D Virus for years to come, and turned into Mutant Zombies in the process.
Chimera (Marchen Awakens Romance) fused herself with the monstrous body of the Ghost ÄRM, Hydra.
Ian's girlfriend, Gido (Marchen Awakens Romance) was mutated into a bug by Chimera to punish Ian for disobeying orders.
Alucard (Rosario + Vampire) is a hideously mutated vampire.
Raphael (Teenage Mutant Ninja Turtles 2012) has been turned into a mutant turtle vampire by Count Dracula.
The Lizard King (Ultimate Spider-Man) is an alternate reality version of the Lizard who has become a vampire.