One week before Riot Games was slated to release their 10.2 patch to Teamfight Tactics, Stephen Mortimer, the auto chess game’s Lead Designer, posted a Youtube video on his official channel announcing a B-side patch was going live on Wednesday afternoon.
Typically reserved for “emergency” changes if the team feels certain champions or items are a bit over-tuned, Mortimer revealed that three champions (Lucian, Yorick and Sivir) were being nerfed on the spot to restore order to the meta for the immediate future.
Source: N4G PC Lucian, Yorick, Sivir all nerfed in Teamfight Tactics' 10.1B patch