Haha, this was totally me. I used Aron in all of my uber battles last month (~540) and managed to get to #10 on the ladder with him, haha. With sand support, he can OHKO Mewtwo, Palkia, Lugia, Ho-oh, Blaziken, Deoxys (all formes), Latias, Latios, Blissey, Manaphy, Tentacruel, Salamence...