Kalista
With Riven becoming an incredibly powerful core unit, compositions utilizing the Legion system are gradually making a comeback in the Teamfight Tactics meta. Even though her roll rate has been increased at level 7, you still have to invest a lot of time and gold to obtain a 3-star Riven. As a result, many players have started using Kalista as a perfect item holder for Riven, capable of activating the Legion effect early. This unit also helps players build winning streaks and accumulate a significant amount of gold to roll for Riven at level 7.

Not only is she strong in combination with Riven, but the popularity of the Undead tribe also means that Kalista is being used much more than in the previous patch. It is recommended to equip Kalista with powerful physical damage items so that she can deal effective damage in the early and mid-game. Furthermore, equipping items for Kalista also means that your Undead Mutant will be stronger and able to easily eliminate enemy carry units in the later stages.
Kennen
There is an undeniable fact that 2-cost core units like Soraka, Brand, and Hecarim are becoming incredibly popular in the current meta. The biggest reason is that Riot has raised the appearance rate of 2-cost units at level 6 to a staggering 40%. Even if you are not using the aforementioned carries, upgrading 2-cost units like Kennen to 2 stars in the current version is very easy. As a result, Kennen and the Demon composition have also become extremely popular right now.

Additionally, the fact that Kennen is a champion that utilizes the Morello’s Tome (both regular and Dark versions) makes this unit extremely hot. Essentially, Morello’s Tome is an item that can strongly counter “tanky” champions and high-level units due to its effect that deals true damage based on maximum health. Therefore, this item can effectively counter many 3-star units. Perhaps because of how well he utilizes this item, Kennen will be heavily nerfed in the upcoming 11.11b patch.
Trundle
Although the Warrior composition has been heavily nerfed, Trundle remains an extremely valuable and viable champion at this time. With everyone chasing the reroll meta, 3-star champions are no longer a strange phenomenon. The characteristic of these 3-star champions is that they possess a large amount of base stats, which allows Trundle’s skill to shine brightly and significantly reduce damage from opponents.

Not only in terms of damage, but Trundle also steals health and defensive stats, making the enemy’s carries easier to eliminate. To use this champion most effectively, players should combine Trundle with Mordekaiser in a Legion composition to take advantage of the Dragon’s effect. You can position Trundle directly across from the enemy’s carry unit so that this piece can maximize the effectiveness of the stat-stealing effect provided by his skill.