Nguyễn "Slay" Ngọc Hùng joined Hanoi Fate as a flexible player to play Top, Jungle and AD carry in the 2014 Vietnam Championship Series A Spring. Hanoi Fate would finish the series 3rd, with a 9-5 record to secure the final place in the 2014 GPL Summer Qualifiers/Vietnamese Qualifier, and would earn the team a sponsorship from G5 E-Sport. At the Qualifier, Hanoi Fate would finish 3rd, with a 1-1-1 record, failing to gain a spot in the 2014 GPL Summer.
In the 2014 Vietnam Championship Series A Summer, Slay was able to focus purely on the AD role, improving the teams play rapidly, allowing the team to secure first place with a 1st place regular season result with a 9-3-2 record. Just days before the GPL Qualifier, the team would lose their sponsorship from G5 E-Sport. In the GPL Qualifier group stage the Fate would place joint 1st with a 3-1 record in their group, they therefore qualified to the GPL 2015 Spring.
In the round of 16 group stage Hanoi Fate would qualify in 2nd in their group with a 4-2 record, however Slay play 3 roles. This would hinder teams performance as they consistently swapped roles, winning just one of 12 games in the 2nd group stage and being eliminated with a top 8 finish. Seeing the mistake of the Spring Hanoi Fate once again returned to players with a single role, Slay would play top lane in all games of both the 2015 GPL Summer and the 2015 Vietnam Championship Series A Summer.
In the 2015 Vietnam Championship Series A Summer the Hanoi Fate finished in joint 3rd, with a 21-9 record, which was unbroken by a single round robin tiebreaker between 3 teams. All of which would have qualified to the GPL 2016 Spring if the format had remained the same In the 2015 GPL Summer the Hanoi Fate were seeded due to their top 8 finish. This allowed them a 1st place 2-1-0 result in the first group stage. However the team would fall in the second group stage again, with a 6th place finish with a 3-4 record. In the 2015 Capital Invitational Tournament Slay would return to AD, the team finished in 3rd with a 1-2 record.
Slay would join the Saigon Jokers as an AD player, sharing time with Celebrity, to compete in the VCS 2016 Spring. After losing the first game of the split the Saigon Jokers won 12 consecutive games, ending the split in 1st with a 15-3 record. In playoffs the Jokers would win two 5 game series against Boba Marines and Full Louis to qualify for the GPL 2016 Spring. The team struggled in the group stage, finishing joint third with a 3-2 record. Despite facing a team that they had lost to in the group stage in both of their best of 5 series they qualified to the 2016 International Wildcard Invitational.
In the 2016 IWCI group stage the jokers would finish 4th, with a 4-3 record. In the bracket stage Slay would lose his first BO5 with the Jokers losing 3-0 to eventual winner and Mid-Season Invitational representative SuperMassive eSports. Slay would continue to share time with Celebrity in the VCS 2016 Summer and again would achieve 1st place with a 10-7-1 record. In the VCS A/2016 Season/Summer Playoffs the Jokers would sweep both series 3-0. Slay would not play any part in the teams GPL/2016 Season/Summer victory or their 0-7 collapse in the 2016 International Wildcard Qualifier. Due to the Jokers being disbanded, Slay joined the GIGABYTE Marines.
The Marines would dominate the VCS A/2017 Season/Spring Season with a 12-0 record only losing 3 games in the regular season, in the VCS 2017 Spring Playoffs they would defeat Young Generation 3-0 to qualify for the GPL/2017 Season/Spring. The Marines would be even more dominant in the GPL, winning the final 3-0 and qualifying for the 2017 Mid-Season Invitational. At MSI, the Marines ended the Play-In group stage at 1st place, with a 5-1 record, only dropping a game against, Virtus.pro. The team then faced Team SoloMid and won the first 2 games of the series, but were reverse swept, ending the match at 2-3. They then defeated SuperMassive eSports in the 3rd round (3-1) to make it to the Group Stage. Although the team failed to make it out of the Group Stage with a 6th place finish and 3-7 result, they still managed to secure a Group Stage spot for the GPL region at the 2017 Season World Championship.
After the 2017 Mid-Season Invitational roster, Slay was removed from the roster, and would join Cherry Esports under the IGN "Slayer" as a top laner. The team would have a poor performance, barely avoiding relegation in 6th while having a 4-10 record. Slay returned to the AD role, joining the newly formed EVOS Esports who qualified through the VCS 2018 Summer Promotion losing just one game.
With Slay back in the AD role EVOS Esports would dominate the regular split with a 12-2 record, in Playoffs Slay would beat his former team in a 5 game series to both qualify for the 2018 Mid-Season Invitational and become Vietnam's representative for the 2018 Asian Games. At MSI, EVOS Esports were seeded into the 2nd round, only needing to beat SuperMassive eSports to qualify to the main event. At the main event EVOS Esports would finish 6th with a 2-8 record. In the 2018 Asian Games Qualifier, Vietnam would finish 11-1 and qualify to the main event. At Rift Rivals Vietnam would finish a disappointing 3rd with EVOS Esports only winning one of four matches.
In the VCS 2018 Summer Season, EVOS Esports underperformed finishing 4th with a 8-6 record. Before the playoffs, EVOS Esports competed in the 2018 Asian Games, placing 5-6th with a 2-4 record. In the VCS Playoffs EVOS Esports lost a 5 game series to Cube Adonis finishing 4th.
Due to the Summer underperformance Slay would share time for the first time since 2016 with Noway, although Noway would start more games, including all of the VCS Playoff games. Individually Slay would win 8 out of 14 games in the teams 3rd place, 9-5 finish.
After losing his spot at EVOS to Noway, Slay changed roles to play support for GAM Esports, meaning Slay had played all 5 roles professionally. Slay would play in all of GAM Esports games in their 1st place 11-3 finish. He would split time equally with Hieu3 in their undefeated VCS Playoffs Run against Lowkey Esports and Team Flash.Vietnam to secure a place in the 2019 World Championship.