This Fini set is used to check mons like Moistshifu and Weavile due to resisting just about everything they can throw at it. Taunt is used to ensure that Toxapex and Ferrothron won't be a headache for it. Scald is because the difference in power between it and surf is pretty meh and you wanna be spamming cm when your terrain is up so you don't get statused. It's also not a pure offensive pokmone so you don't really need the extra power of surf unlike the scarf set. Finally, draining kiss is to give it some sort of recovery
The speed evs is to outspeed specially defensive Heatran with the rest being dumped into hp and defense to better check physical threats such as the aformentioned two
For teammates, you would want the likes of Tornadus, Zapdos, Corviknight or anything like them to handle Kartana and Rillaboom while also wanting guys like Dragapult and Weavile who love not being statused, just be mindful of the dragon type move damage reduction. You would also want some safety against other threats like Garchomp or Dragonite who can pretty much take +1 draining kiss and straight up kill you
This set is mostly a mix between stallbreaker and win condition while providing some defensive utility with its typing and terrain
