Naive- (or TA2000) is known as a young esports player in Dota 2 from Kazakhstan. He plays as a carry and midlaner, and his signature heroes are Terrorblade and Juggernaut.

Initially, he played for Kazakhstani mix teams like Team Kazakhstan and NiceOne, demonstrating impressive individual performance at tournaments. After half a year, Naive- was invited to join Team Empire, alongside fn, Ghostik, Chuvash, and Miposhka. The team had varying degrees of success, sometimes securing 1st-3rd places at tournaments like Sunday ES.BET Invitational #1 and X-Bet.co Rampage Series #2, but also encountering disappointing results, such as finishing in the 13th-14th place in the BTS Summer Cup qualifiers and 11th-12th place at the EPICENTER XL event. In September, Naive- participated in a couple of events as part of the team Odium, formed by lil me alone. Their most successful performance was a 5th-6th place finish at Reshuffle Madness. By November 2018, Naive- had left Team Empire and played for the team Patriot at tournaments like World Electronic Sports Games 2018 and Esports Open Cup, where they secured 1st place in both events.

In October, Naive- and players Ceyler, Ghostik, and Zayac formed a new CIS team called The Pango. The team performed well at smaller-scale tournaments, but struggled to achieve higher placements in tier-2 and tier-1 levels, often finishing around the 5th-6th place. This was evident at significant events like WePlay! Dota 2 Valentine Madness and ESL One Mumbai 2019. However, in January 2019, The Pango managed to secure a 3rd-4th place finish at WePlay! Dota 2 Valentine Madness, although they lost to OG with a score of 0:2.

It took Naive- around 5 months to try his skills with teams like Team Unique, FlyToMoon, and Aggressive Mode. During this period, he was victorious at META'19 Alfa Donate, and by March 2020, Naive- replaced DyrachYo in the Kazakhstani team KHAN. Alongside Naive-, the team consisted of players Zitraks, Puber, and yamich. In 2020, the team achieved a silver placement in Epic Challenger League Season 1 and Glory of the Summer, as well as a 4th place finish at BTS Pro Series Season 3: Europe/CIS.

Naive- played the 2022/2023 season for Quest Esports, before The International 12 they were signed by French football club PSG and their squad started playing under the PSG.Quest tag. Unfortunately, Naive-'s team failed and could not make it out of the group, finishing in 17th-20th place at TI12.

The year 2024 began for TA2000 and PSG Quest with a string of failures at qualifiers. The team lost three times in the final qualifiers: at BetBoom Dacha Dubai 2024, Dreamleague Season 22 and ESL One Birmingham 2024, but managed to qualify for Dreamleague Season 23, where they placed 10th, and also played at Elite League 2024, where they placed in the top 6.

In June of the same year, the closed qualification for the Riyadh Masters 2024 started, where PSG Quest received a direct invitation and made it to the main stage of the tournament. The next challenge for the team was the closed qualification for The International 2024, where they fell just short to get to the event. Later the guys took part in the 1win Series Summer, finishing in eighth place. At the Riyadh Masters 2024, the team did well, finishing in 5th place, followed by a win at LEON.BET MASTERS #1. However, at FISSURE Universe Ep.3 PSG Quest took only 10th place.

In September, TA2000 joined Aurora Gaming. In the new team, the player debuted at the qualification for DreamLeague Season 24, but failed to qualify for the championship. Later, Aurora received an invitation to BetBoom Dacha Belgrade 2024, where he placed 6th. 

In December 2024, TA2000 left the main roster of Aurora Gaming, and later joined the Chimera Esports. In the new team, the player tried to qualify for many major tournaments, and also appeared at DreamLeague Season 25, where he took 4th place.

In the spring of 2025, Aibek had to step in for Aurora Gaming at FISSURE Universe Ep.4, replacing Nightfall due to health issues.

On March 28, 2025, the player left Chimera and joined Virtus.pro. The new lineup immediately received a direct invite to the online tournament FISSURE Special.

On May 10, 2025, it was reported that TA2000 will miss FISSURE Universe: Episode 5 due to health issues.

On May 30, TA2000 officially left Virtus.pro.

He also joined the new Cyber Goose roster at the end of May and qualified for Riyadh Masters 2025 with the team. On June 23, 2025, the roster of Cyber Goose was signed by Team Yandex.

In early July, the team participated in FISSURE Universe: Episode 5, where they performed poorly and failed to reach the playoff stage.

In July 2025, Team Yandex exited Riyadh Masters 2025, finishing in 11th place and earning $75,000 in prize money.

At the end of July 2025, Team Yandex took part in Clavision Masters 2025: Snow-Ruyi. The team finished in 9th–10th place and earned $24,500. On October 22, he was moved to the team’s inactive roster. On November 5, it was announced that Aibek TA2000 Tokaev had joined Nigma Galaxy. The player will join the team on loan. At PGL Wallachia Season 6, Nigma finished in 12th-14th place.

At DreamLeague Season 27, Nigma finished their performance in the group stage with a score of 3-3. In December, TA2000 left Nigma Galaxy.

At the end of January 2026, TA2000 became part of the AVULUS roster.