Murloc Nightcrawler(?)

In Warcraft III, the Murloc Nightcrawler is apparently the strongest specimen among perfectly normal, non-mutated murlocs — a species of amphibious, fish-like humanoids that live in tribal communities across Azeroth. This magnificent apex predator is, of course, only Level 3. Its most remarkable feature is not its strength, but its ability to make players question their memory. Attack a creep camp at night, and you may suddenly discover an extra invisible murloc that definitely wasn't there a moment ago. There is also a minor biological mystery: the Nightcrawler's unit portrait clearly shows green eyes, while its actual in-game model has bright red ones. And, for reasons best known to Blizzard's marine biologists, that very same green-eyed portrait was later recycled in World of Warcraft as the icon for the Oily Blackmouth — an entirely ordinary-looking fish you can catch with a fishing rod. Apparently, the distinction between an amphibious tribal warrior and a commercially valuable fish was never particularly important.