Replying to A ski that dose it all?

what ski dose it all?
My friends are looking for a ski that he can take on the piste and carve away at the slope but at the same time must be able to ride it in the park hitting rails and jumps with the the occasional 360 but mainly 180's But aswell the ski must be able to cope with POW?

The ski must be able to do;
- carve the slope well
- ride the park (twin tip)
- float along powder

Tell me the ski that can master the art of skiing?