The power to
become a mutated monster. Combination of Mutated 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/
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.