Don't count legendaries. I want who do you think the most normal pokemon is the most dangerous.

I am going to go with magcargo. It's body is ~18,000 degrees fahrenheit. I feel like that would melt through almost anything it touches.

Electrode came to mind. Literally just explodes whenever.

Depending on how toxic those gases are, Weezing is another good answer. Don't want to be around a Pokemon that's constantly pumping out noxious fumes.

It's probably that one Skyscraper Pokemon, it's a freaking Skyscraper.

It's sometimes difficult to separate accurate information about any Pokémon from exaggerated dex entries written by 10-year olds or flavor text put in by the game devs to add flair. While I would really love for Magcargo's body to be 18,000°F, it would be a walking apocalypse incinerating everything in its path. That temperature is hotter than the surface of our Sun, so not even one Magcargo could exist on Earth without ending all life as we know it!

Continuing to go off of Pokédex entries though, I'd like to add Hydreigon, Gyarados, and Tyranitar to the conversation of most dangerous non-legendary Pokémon. Hydreigon sees anything that moves as a threat and uses all three of its heads to consume and destroy everything in its path. Similarly, Gyarados' Pokédex entries consistently describe it as a menace that goes on a rampage until it demolishes everything around it. Some entries say that these rampages can last an entire month and have been known to destroy entire cities. And finally, Tyranitar is no slouch when it comes to destruction. The thing's a walking natural disaster... when it rampages, it casually knocks down mountains, flattens landscapes, and buries rivers. It's not just a strong Pokémon, it can literally alter geography just by getting p*ssed off, lol.

Ditto, Because if it ever decides to transform into your friend or loved ones...Then you better pray its just a prank.