I don't take Pokedex entries seriously because of how ridiculous some sound and how some Pokemon have one entry that contradicts another, and I think Espurr is cute, so that kind of narrows down what I can find creepy and why. But Mega Pinsir scares me ._. Pinsir is kind of already scary looking on its own, but then they added demonic eyes, spiky parts on its pincers (Pinsir's pincers, haha), and wings that look like they belong to some kind of moth monster.