In January 2018 he tried to win the Tour card in PDC and reached the final of the tournament on Day 3, where he lost to Tytus Kanik.
[1] On 2 February 2018 the Darts Regulation Authority ("DRA") released a statement that Lewis would be suspended with immediate effect pending an appeal following an incident with Justicia in the first UK Open qualifier.
After winning the South West Europe Qualifier, Justicia secured his debut at 2020 PDC World Darts Championship.
[5] In September, he represented Spain in the 2021 PDC World Cup of Darts alongside Jesús Noguera, where they lost in a deciding leg against the South African team of Devon Petersen and Carl Gabriel.
In January 2022, Justicia entered EU Q-school and on Day 1 in the final he whitewashed Mario Vandenbogaerde 6–0 to secure his PDC Tour Card and ensured his return to the professional circuit.
[6] He reached the third round of the 2022 UK Open, where he lost in a deciding leg to Adam Gawlas, despite hitting a nine-dart finish during the match.