Buzz
Using an excess of champions from the tribes below in Teamfight Tactics often leads to counterproductive outcomes.
Sharpshooters
In Teamfight Tactics season 6, all Sharpshooter units are exceptionally strong in dealing damage. While Caitlyn, Kog'Maw, and Tristana excel at swiftly taking down a target, Jhin or to some extent Miss Fortune can easily dispatch multiple opponents. However, in practice, it's rare for players to deploy all the mentioned units to achieve 4 or 6 Sharpshooters (with the Indian tribe - synergy) despite their strength.
The primary reason for this is that Sharpshooter units have very poor defensive capabilities and self-protection. Consequently, they require support units around them to shield and deal damage as efficiently as possible. Moreover, you also need some frontline tanks. To ensure balance between the frontline, support units, and main damage dealers, players often have to reduce the number of Sharpshooters and usually only play with 2 champions.
Divine Archer
In Teamfight Tactics, the case of Divine Archer resembles Sharpshooters in that these units excel at dealing damage but lack defense. Hence, players often stick to 2 Divine Archers to maintain team balance. In hyper-roll comps, Kog'Maw typically pairs with Graves, while in Chemtech teams, Urgot is usually paired with Jinx in the late game.
Not only that, but the synergy of the Divine Archer tribe also discourages playing at higher levels. Essentially, the Divine Archer synergy allows a champion to attack twice, and for this effect to deal significant damage, the champion must have many items. However, in a game of Teamfight Tactics, you have to build defensive and counter items, not just focus on damage items. Therefore, you can only equip damage items for a maximum of 2 units to fully utilize the Divine Archer synergy.
Mechanical
Attack speed has long been a crucial stat that significantly impacts the strength of many team compositions, including those using spell damage. Hence, a tribe that provides attack speed for the entire team like Mechanical is always highly favored. Moreover, this tribe boasts two incredibly strong 4-gold champions: Orianna, with her shielding and crowd control abilities, and Jhin, with massive damage output.
However, for a supportive tribe like Mechanical, stopping at 2 champions is more than enough. Going for 4 Mechanical champions is a huge waste as Camille or Zilean aren't strong pieces in the late game. Furthermore, the Mechanical synergy doesn't provide much benefit to Jhin as this unit only converts the attack speed amount at 4 champions to 52 Attack Damage and sacrificing units like Janna or Taric for this stat is not worthwhile.
