After you beat the game go to fossil stadium. Walk to the common room and you'll see Saurhead. Talk to him and ask to battle. {Get ready for a battle of a lifetime.} If you are lucky enough to beat him you'll get igno. {HE IS AWESOME AND GREAT TO ADD TO YOUR TEAM!}
You have to beat saurhead in the common room in fossil stadium three times . I don't have him yet because its hard to beat him the third time but keep trying