A child was born with borderline left ventricle, mitral, and aortic valves. He underwent first-stage palliation followed by Glenn. Before Fontan, he was considered for biventricular conversion. Subsequently, he underwent 3 operations toward achieving that goal. Those entailed atrial septal defect closure, takedown of Damus–Kaye–Stansel, septal myectomy, resection of endocardial fibroelastosis (EFE), aortic commissurotomy, ascending aorta patch, mitral valve repair followed by replacement, pulmonary artery patch, and takedown of Glenn with superior vena cava patch.