Incineroar

Incineroar is the peak of utility in VGC 2019. It frequently finds its way onto any and every team composition, as it is blessed with an insane toolkit of Fake Out, Intimidate, U-turn, and Roar, providing so much for so little opportunity cost. Incineroar is the perfect Pokemon to enable VGC 2019's top threats, supporting Xerneas with Fake Out and Intimidate, pivoting in and out to help Primal Kyogre win the weather war against Primal Groudon, or using Roar on an opposing Xerneas to stop its sweep. What Incineroar does best, though, is making sure matches aren't just outmuscling your opponent, since its toolkit naturally requires games to play at a slower pace. The importance of Intimidate cannot be understated, as VGC 2019 is full of strong physical attackers like Mega Rayquaza, Primal Groudon, and Mega Salamence; as such, it is often momentum-shifting to turn an OHKO from one of these juggernauts into a 2HKO. It also adds a key Ghost resistance to many teams looking to improve their matchups against Lunala and Mega Gengar, as well as Fire-type coverage to ensure that any team can hit Ferrothorn and Celesteela. However, Incineroar is not without flaws; notably, its typing gives it two detrimental weaknesses to Ground and Water, meaning it matches up negatively against both Primal Kyogre and Primal Groudon. Additionally, it has to invest heavily in Special Defense if it wants to take on Xerneas, meaning Incineroar's offensive presence—and overall performance—are typically only as good as the Pokemon it enables.