Team Foo Fighter Apex Limited 4 (AL4 for short), known as Team Asteroid in the English dub is a team that took part in the Japan National Tournament and won the previous two Vanguard Championships. The team consists of Ren Suzugamori, Tetsu Shinjou and Asaka Narumi. Kyou Yahagi was also a former member of AL4 before he was beaten by Toshiki Kai in the preliminary matches of Team Q4's first National Tournament. Ren is the only confirmed member with PSY Qualia on this team.

It was found out that Kai, Ren and Tetsu were the original members of the team.

This team is considered to be the pinnacle of the Foo fighter organization, and only the best three are allowed on, as Ren Suzugamori is guaranteed a spot on the team. Because of this, the team has had several changes to its lineup throughout the anime, with Toshiki Kai currently holdng the fourth position in the newest incarnation of the team New Apex Limited 4.

It has been stated several times in the anime that all three core members of the team are very skilled, and as such they have seen victory many times in tournaments, even winning the National Championships twice before being defeated by Q4.