[6] Fantasia played his junior football for the Payneham Norwood Union Football Club where his talent was identified by South Australian Hall of Famer Garry McIntosh who selected him in the club's senior side as a 15 year old.

He made his senior debut for Norwood in the South Australian National Football League (SANFL) in 2013.

In the final round of the 2015 season, he was rewarded with a nomination for the AFL Rising Star where he recorded 27 disposals and five marks in the Bombers' three-point victory over Collingwood.

[8] Fantasia received a second nomination for the Rising Star after his three goals, eleven disposals, seven contested possessions, and seven tackles in round 17, 2016.

[10] In August 2020, Fantasia again showed an interest in returning to South Australia, with a possible move to the Port Adelaide Football Club.