Mine was a Typhlosion in gold.
I didn't level anyone else in that game and only used Flamethrower on EVERYTHING.
I once battled a friend who had a Feraligatr, Ho-Oh, Lugia, and the three dogs all at 95 (using a Gameshark) And Good ol' Firehazard(This name is passed down from Typhlosion to Typhlosion in mah games) One shotted them all with Flamethrower. It was all "Fwaa! I can beat anything with mah Charcoal!"