As we know, Teamfight Tactics will undergo significant changes in the mid-season patch 10.12. Many players who enjoy the new meta can experiment on the PBE server. Conversely, those looking to improve their rank should take advantage of the current highest win rate compositions before they disappear forever.
Here is a list of the highest win rate compositions in the meta:
Void Brawler – 24% top 1 and 74.9% in top 4

Still a very familiar composition in many recent patches, the true damage of Void is the main source of strength for this team. If lucky, you can hyper-roll for a 3-star Kha’Zix early on to maintain a winning streak from start to finish. If not, Vel’Koz will be the main source of damage for the team.
6 Rebel – 20.8% top 1 and 67.1% in top 4

Since Ziggs’ maximum energy was reduced to 40, this hyper-roll Ziggs 3-star composition has become incredibly powerful. Currently, with a combo of Ziggs 1 (or 2) with a Guardian Angel + Rabadon’s Deathcap, along with Rumble triggering Explosive Charge, Ziggs can help you secure early winning streaks.
In the late game, additional carries like Gangplank, Miss Fortune, and Jinx compensate for Ziggs’ area damage. Aurelion Sol can also become a carry if equipped properly.
Gunner Brawler – 19.6% top 1 and 69% in top 4

Still a familiar composition with the two main carries being Jinx and Miss Fortune, but this composition requires contested items, making it hard to complete. However, once you get this composition, the chance to reach the top 4 is quite high, and if Miss Fortune has many upgrades, the win rate will be even higher.
Spy Pilot – 17.6% top 1 and 61.1% in top 4

This composition relies quite a lot on… “luck.” Because as long as Kai’Sa has 3 items: Morello’s Evil Tome, Guardian Angel, and Explosive Charge, you can easily make it to the top 4. If you are a bit luckier and roll many 3-star champions, the top 1 is within reach.
Gunner Explosive Charge – 15.5% top 1 and 51% in top 4

When playing this composition, initially, you can sustain health and earn gold with champions like Darius, Jayce, and a Vanguard along with Kassadin. In the late game, if you have enough gold from Pirate, you can reach level 9, swapping out Graves and Darius for better items. The main carries will be Gangplank and Jhin.
Candyland – 15.2% top 1 and 59.8% in top 4

Since the carry champions in this composition were nerfed, Candyland has largely been shunned by players. But that’s also why this composition can easily reach the top 4, as when no one plays it, you can roll for 3-stars more easily. If you reach level 9 in the late game, adding Xerath with an attack speed item can increase your chances of getting top 1.
6 Shadow – 14.5% top 1 and 44.5% in top 4

In this composition, Karma will be the champion that should and can easily reach 3 stars. Because this champion is not a carry in any composition, but in the Shadow composition, Karma is especially important with a buff of 50/75/125% attack speed as well as shielding carries like Jhin or Xerath – two champions that need attack speed in the Shadow composition.