TL;DR
- TFT Set 8 ‘Monsters Attack’ launches December 7 with kaiju-inspired theming
- Augments become permanent TFT feature after successful Gadgets & Gizmos and Dragonlands implementations
- New Hero Augments provide single-unit power boosts available simultaneously to all players
- Threat trait introduces standalone powerhouse units without traditional trait synergies
- Multiple new hero teams including Star Guardian, Underground, Anima Squad, and Ox Force

The upcoming Teamfight Tactics expansion, officially designated as Set 8 and titled “Monsters Attack,” brings a vibrant kaiju-inspired theme to Riot’s auto battler. This new installment introduces fresh gameplay mechanics and champion traits that perfectly complement its monster-versus-heroes narrative framework.
Scheduled for deployment with Patch 12.23, the Monsters Attack expansion represents the next major evolution of Riot Games’ strategic battler. The development team, led by veteran designer Stephen “Mortdog” Mortimer, has provided comprehensive insights through detailed presentation videos that break down the set’s core innovations and strategic implications for competitive players.
TFT Set 8 says augments are here to stay
First appearing in the Gadgets & Gizmos set, the Augment selection mechanic has fundamentally transformed Teamfight Tactics gameplay by offering players strategic customization options at three distinct stages throughout each match. These game-changing enhancements proved so popular that they continued into Dragonlands, and Riot Games has now confirmed that augment-style systems will remain a permanent fixture in TFT’s core gameplay loop.
The decision to make augments a staple feature stems from their proven ability to increase game variety and strategic depth. Each augment selection presents players with meaningful choices that can dramatically alter their team composition, economy strategy, and late-game power spikes. This permanence ensures that players can rely on augment strategies across multiple competitive seasons.
Teamfight Tactics: Monsters Attack!
Thematically centered around “Monsters Attack,” this expansion unfolds within the fictional metropolis of Spatulopolis, currently besieged by colossal kaiju-inspired creatures. Mortdog’s comprehensive set analysis revealed numerous gameplay innovations that dedicated fans can explore when the update reaches the Public Beta Environment.
Set 8 introduces Hero Augments, specialized enhancements that significantly amplify individual unit capabilities. These unique augments appear only once per match and are simultaneously offered to every competitor, creating shared strategic decision points that test players’ adaptability and unit evaluation skills.
Counterbalancing these hero enhancements is the innovative Threat trait, representing the monstrous invaders assaulting Spatulopolis. Unlike traditional traits, Threat provides no inherent bonuses, and Threat units possess no additional trait affiliations. Instead, these champions function as self-sufficient powerhouses designed to deliver substantial impact through raw individual strength rather than synergistic combinations.
Additional confirmed traits from the set announcement include Star Guardian, Underground, Anima Squad, and Ox Force. Each represents distinct hero factions defending Spatulopolis, offering varied playstyles and strategic approaches for different gameplay preferences.
Teamfight Tactics: Monsters Attack becomes available on the Public Beta Environment concurrent with Patch 12.21’s deployment to League of Legends live servers on Wednesday, November 2. The full live server launch follows on December 7, giving players approximately five weeks to test strategies and familiarize themselves with the new mechanics before competitive play begins.
Strategic preparation during the PBE period is crucial for competitive advantage. Players should focus on understanding Hero Augment timing windows, Threat unit power spikes, and optimal trait combinations during this testing phase to hit the ground running when the set goes live.
Action Checklist
- Watch Mortdog’s set breakdown video to understand core mechanics
- Test Hero Augment strategies during PBE testing period starting November 2
- Experiment with Threat units in various team compositions
- Analyze trait synergies between Star Guardian, Underground, Anima Squad, and Ox Force
- Develop adaptation strategies for simultaneous Hero Augment selections
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