These outrageously dominant lineups have been under Riot Games' scrutiny in the latest update of Clash of Legends.
Technology - Advance
In a somewhat magical way in Clash of Legends season 6.5, Riot Games granted this lineup almost the strongest elements, pushing it into severe imbalance. Early in the match, Sejuani and Rek'Sai form an aggressive duo, while in the late game, the coordination between Sivir and Irelia unleashes significant damage. With Sivir's AoE and Irelia's Blade Surge, this duo can swiftly eliminate enemy team compositions in a very short time.

In patch 12.4, Riot Games took comprehensive measures to nerf this lineup both in the early and late game. Specifically, Sejuani and Rek'Sai will undergo significant nerfs to their durability, making the Technology - Advance team more vulnerable early in the game. For the 4-cost carries, both Irelia and Sivir suffer damage nerfs. Even the Technology tribe itself experiences a reduction in strength, affecting both shield creation and damage buff abilities. With such comprehensive nerfs, the Technology - Advance team becomes significantly weaker.
Blademaster - Renata
Not only did the Tech team get affected, but the nerfs to Sejuani and Rek'Sai also significantly weakened the Fighter - Renata lineup. Remember, this lineup relies on the robustness of the Fighter units and the ability to deal good damage without requiring many items from Rek'Sai to overcome the early game. Now, with both Rek'Sai and Sejuani having reduced health stats, the amount of damage dealt by the Fighter team will be much lower.

And it doesn't stop there; even if you manage to reach level 8, Renata's damage is also greatly reduced at 1 and 2-star levels. Not to mention, the heavy nerfs to Silco's stat buffing ability and Boss effect weaken the variations of the Fighter - Renata team significantly in the late game. In essence, these are reasonable nerfs from Riot as this lineup has proven to be too dominant, with both strong durability and high damage.
The Inventors and their companions
Although the Inventor lineup has only a minor change—replacing Heimerdinger and giving this tribe to Ekko—it has opened up many strong gameplay options. For example, combinations of Inventors like Kha'Zix, Draven, and Irelia have consistently been introduced and shown to be very effective. The main reason for this lies in the discovery of the powerful stat buff from Tech Bear on the mentioned physical damage carries.

And in the upcoming 12.4b patch, the exploitation of Tech Bear's strength is likely to decrease as Riot intervenes with a nerf to this unit. Specifically, the Tech Bear's stat buff will decrease from 100% to 70%, and additionally, Ekko's attack speed buff will be nerfed, significantly affecting the strength that the Inventors lineup possesses. Of course, this might not be enough to make the Inventors team disappear from the meta, but at least it will make it less overpowering.
