-The meta shifts have been a boon for Mega Charizard X. With all the Food types running around, Zard fulfills the need for a powerful Dragon type that can run through even stuff like boosted Snorlax with ease.
-Speaking of Food, I feel it is overall the best new type. It has a good mix of offensive and defensive coverage that's super helpful for mons like Snorlax and Guzzlord. The next best type imo is Time, followed by Space, Light and Heart.
-Trick Room has more than proven its worth as a playstyle. Not only is it super easy to set and keep up, but there are a plethora of setters that are good in their own right such as Cofagrigus and Stakataka, as well as abusers like Regice, Beheyeem, Marowak-Alola, Snorlax and even Stakataka itself.
-You've seen me mention Snorlax a lot, and that's because it's super splashable. Can fit on any team aside from like HO tbh