The lineups below are quite 'out of meta' in Teamfight Tactics season 6.5.
6 Challenge
To put it mildly, in the first half of season 6, the Challenge team was one of the most popular lineups with too many powerhouses capable of 'carrying the team.' Pieces like Samira, Yone, Fiora... all have extremely high damage output and help this lineup dominate skirmishes very easily. However, in season 6.5, it's sad to say that the Challenge team has almost completely disappeared from the meta despite having Draven, Tryndamere.
The main reason for this lies largely in Yone, Fiora, Samira being removed from Teamfight Tactics by Riot, significantly reducing the damage output from this team comp. Even with Draven or Tryndamere, the Challenge team isn't any stronger. With Draven, this unit is too dependent on the VIP effect that the Elderwood tribe possesses, or Tryndamere lacks the Divine effect, making him very easy to die. Therefore, gamers have gradually overlooked the Challenge team in favor of using other stronger effects.
Mage