Pokemon Masters EX: Challenge Malva: Part 2
Okay, so aside from having Diantha and Diancie on your team. the 2nd closest to taking on this challenge is to run them hard with the best units of Kalos which are Sycamore and the Two Champion Protagonists. But thats just if you want to run them down and have barely any challenge. This is pretty much a broken team so it was fairly easy aside from being spammed by Heat waves and Xerneas not healing your units out of burns. 😅