 On April 30, 2014, Butler recorded a career-high 31 points, shooting 13-of-19 from the field, along with five rebounds, two assists and two steals in a 110–98 win over Excelsior Brussels.Butler won the 2013 Belgian Supercup with Okapi Aalstar.In 48 games played during the 2013–14 season, he averaged 16.2 points, 4.2 rebounds, 1.2 assists and 1.2 steals per game.