Careful about double posting winter :P
That man used Z-Trick Room for Hypnosis what a beast
He also used Trick Room and Geomancy that was bizarre.
Amused he forfeited after basically being beaten by his own Pokemon lol
Most TR teams are Semi, about half the monster work off speed, and the other half are room based
The only True TR team you'd find is the bane of my team, and that's the Sleepsy Spam teams
Z-Room Hypnosis is super common since Darkrai got nerfed. You see it more on Lunala however.