MIAMI — Mario Chalmers laughs at the question because he already knows the answer. So when asked what he is looking most forward to when he returns Sunday with the Ice Cube’s Big3 halfcourt league for a game at the Kaseya Center, it’s as if he has a clear lane for a layup. “Just being able to show my offensive skill set,” he said, then pausing for effect, before adding, “without having to pass ...