[GEN VI] desperately need a tyrantrum with rock head in Pokemon x/y

Hi,i'm recently started pokemon X/Y and tyrantrum is my favorite pokemon now,it looks amazing and it is so strong.I recently came to know about it's hidden ability (rock head) and i knew that it is impossible to get without trading and i want it so bad,can anyone help me?I Don't have much to trade it for,but i can breed one and then return the one given to me if it's not a problem
Iooking for a tyrantrum with rock head or a sturdy tyrunt😔😞