Teams Utilizing Major Racial Thresholds
This type of team composition relies on effects like 6 Divine, 6 Mage, or 6 Celestial as the main strength in the late game. The characteristic of this team composition is that it does not activate many effects from different systems, so the defensive or offensive capabilities of the units are significantly limited. For example, with a 6 Mage team, you will often take Rell to increase defensive capabilities rather than activate Yasuo’s Legion effect, limiting this unit’s damage output.

Additionally, teams using major racial thresholds often face many difficulties in the mid-game when they have not reached their final power threshold. Your team appears quite weak when it has not reached the level of 6 champions as mentioned above, so players can easily find themselves in a situation of continuous health loss. If you are not lucky enough to level up your team in the later stages of the match, even reaching the 6 champion threshold will still lead to elimination.
Playing Around a Single 5-Cost Carry
A typical example of this playstyle is team compositions revolving around Kayle, as this unit can “carry the world” if it survives long enough. However, this strategy is extremely risky because you will not have a secondary carry to share the burden of damage when your most important piece is countered. It would be terrible to funnel all your strongest items into a 5-cost champion (who may not even reach 2 stars) only for them to be controlled by Thresh, blown away by a Blade of the Ruined King, or die too quickly to deal damage.

Furthermore, to reach the proper level and utilize 5-cost carries, you need to go through a very long period with many variables that can occur. If you focus solely on one expensive 5-cost carry, you will miss out on winning opportunities from other strong pieces and items. Therefore, the advice is not to apply the strategy of revolving around a single 5-cost carry in every match, but instead remain aware of other opportunities the game presents.
Rerolling 2-3 Cost Champions
Essentially, the reroll strategy always carries a high risk as Teamfight Tactics players will rely on “luck” to upgrade their desired carries early on. Moreover, Riot Games has nerfed many key 2-3 cost champions in recent patches to limit this playstyle. It can be said that rerolling 2-3 cost champions at this time is both risky and the strength players receive is not as overwhelming as before.

Therefore, if you want to apply the reroll strategy, you should aim for strong 1-cost champions like Vayne, Kalista, or Kled, Ziggs from the Demon team. Rerolling early will give you more time to accumulate gold in the mid-game and allow you to pivot your team if you cannot upgrade your carries to 3 stars.