Rustboro is the most Technologically advanced city in Hoenn and home to the Devon Corporation, an pokemon technology development company almost on the same level as Sliph CO. along with the great world reknowned Pokemon Training academy really balances the great atmosphere with Rustboro's old fashioned style archeticure. The Gym Leader of Rustboro is a master of Rock type pokemon so relying on such techniques as electric and Fire would put you in a rocky disposition.