Well this definitely isn't a power and it definitely isn't a set physiology. This screams of an archetype page rather than a power.
Monster hunters don't just appear in a set mold with a preset batch of skills and abilities. Monster hunters appear in all shapes and sizes, across a bunch of species, with a multitude of unique and different abilities.
You get completely normal human hunters (like Hunters from the Supernatural series) and you also get genetically modified ridiculously superhuman hunters (like Witchers from the Witcher series).