Which pokemon do you think are 'Deadliest looking'? Deadly look=That look that screams "Hey, you wanna fight? Hmm..didn't think so." It's sad to know much of this awesome pokemon are weak competitively. It will be great if you could name some that are also good for battling with and not just admiring (and intimidating). Try to avoid legendaries and shiny pokemon. Oh, and include mega pokemon. Some of my opinions:
While I will admit that's terrifying @Roku, I think there's something even more deadly looking... Run for your life!
'Opponents who stare at the flashing of the light-emitting spots on its body become dazed and lose their will to fight.' =)
Okay maybe not igglybuff, but swirlix, at least from my perspective, is 'weird and ugly'... Any more anyone?
According to the Pokedex,Ultra Ball Electrode blows itself up causing a massive explosion "with little or no provocation". This makes it extremely dangerous even to its own trainer. If ISIS could choose a Pokémon, they wouldn't look any further.
DO NOT MESS WITH ME!!!!!!!!!! And: Prepare to die by black'n'red. And also: We can do this the hard way, or the harder way.
Mega mawile is kinda scary and how about mega pincer oh and for deadly dangerous id go for that trainer eating victreebell Heres your How about this diglett i found i dug it up and found this...