Gen 1: Mewtwo. Just because by now, I've translated that to "you might wanna run now." Gen 2: Typhlosion and Lugia (actually the same cry with different pitches). Gen 3: Salamence and Rayquaza. Gen 4: Toxicroak. 'Nuff said. Gen 5: Genesect. Gen 6: Uhh... Does Mega Scizor count?
I was once modded for illegal activity because I made a topic asking for advice on nicknaming my Pokemon. Pokemon White 2 FC: 0992-4144-3423 - THIEF