In Teamfight Tactics, using a single team composition for all your matches while climbing ranks can easily lead to failure. Since champions and items do not always appear as you wish, to choose the appropriate team composition, you can refer to TSM Keane’s handy tips – the champion of the most popular international TFT tournament in Season 2, who is also humorously referred to by fans as the “Faker of TFT”:
Kayle Fighters of Time Team Composition

This composition should be played when starting with Blitzcrank, Malphite, and Caitlyn early in the game. You can sustain health to accumulate gold with 4 Fighters and 4 Time Champions at level 8. From mid to late game, you should aim to level up to 9 to activate 3 Bladesingers.
This team is strongest when played in the Large Beast Galaxy (125 health).
Frontline Marksman Team Composition

This composition should be played when starting with Frontline and multiple BF Sword pieces. Priority items should be focused on Jhin, Wukong, Lulu, and Ashe. Depending on the match, you can replace Jhin’s Blue Bow with Runaan’s Hurricane.
Dark Star Marksman Team Composition

In this composition, Jhin usually acts as a 1vs9 champion, so Runaan’s Hurricane is very important for dealing with multiple enemies at once. The Blue Bow can be replaced with Infinity Edge or Bloodthirster depending on the enemies. Thieves Gloves can be given to Lux or Shaco.
This composition should be played when you have many Dark Star champions and early items for Jhin.
Spy Pilot Team Composition

This composition should be played when you have Spies and early items for Shaco, needing to roll for Kai’Sa, Shaco, and the Pilots to 3 stars from level 5 to level 7. Basic items for Kai’Sa should include Guardian Angel, Morello’s Evil Tome, and Oblivion Orb (if available).
Sona Mana Pump + Void Team Composition

This composition should be played when you have many Tears early in the game to craft the Chalice of Harmony and Guardian Angel for Sona. Since the Void team has true damage, all items are useful, and you can distribute tank, magic, or physical items among Vel’Koz, Cho’Gath, and Kha’Zix.
On the bench, you should have strong champions like Cho’Gath, Ashe, Vi, Blitzcrank, Soraka,… as Thresh will pull them down to spam skills continuously thanks to Sona.
6 Rebel Team Composition

You can use Kayle, Lulu, or Miss Fortune depending on the champions you have at level 8. It has been nerfed but can still be played. Should be played when you have many Rebel champions and items for Aurelion Sol. Strongest in the Large Beast Galaxy (125 health).
Super Tech Assassin Team Composition

At the beginning, you can use the Lucian Marksman Red Buff combo to sustain health. This composition should be played when you have many items, especially items for Irelia and Ekko. Spare item pieces can be given to champions like Leona, Lucian, Fiora, and Vi to activate Super Tech.
Mystic Guardian Team Composition

Should be played when you have many Chain Vest early on. Need to roll for a 3-star Guardian from level 5 to level 7. However, this composition is quite weak in the current meta, only play when necessary (when many champions appear).
Fighter Cannoneer Team Composition

This composition should be played when you have many Fighters and items for Jinx, you can replace Giant Slayer with Blue Bow depending on the match. You can add Aurelion Sol to activate 3 Rebels for Jinx at level 9 or swap Graves for Lucian + Ekko to activate Super Tech.