Set 11 of Teamfight Tactics, called Inkborn Fables, adds Encounters to the game, a new mechanic that brings legendary characters and new challenges to your games. There are over 80 different Encounters in Inkborn Fables, each with its own rarity and frequency of how often it shows up in your TFT games.
Encounters occur at random points during a match, introducing legendary figures, spirits, and mythological champions that present players with diverse challenges and rewards. The TFT team was careful not to reveal everything about Encounters as they’d like players to “experience the fun and mystery” involved. But game after game, even more Encounters will come into the light as players learn how to play around the new mechanic and share their own journey into Set 11 of TFT, starting with Patch 14.6.