Being good at something random like dice is simply impossible.
Its possible, if you can cheat.
In live craps i guess its possible in theory, with dice control (lol)
Its always been amusing to me why Phil Ivey was/is so obsessed with craps, is he just a partial degenerate or there is something more to it, who knows.
Why only cheating?!
there is no skill involved in dice, just high or low. if we look back at the hufflepuff incident, i think everyone would agree cheating was the biggest factor in winning. There is no skill in dice, just stupid luck, and cheating of course.