https://pokepast.es/e14e77ed52576629
Noivern helps excadrill by dealing with pokemon such as latias, hydreigon, and kommo-o, all of whom give excadrill trouble, can pivot it in against favorable MU's such as rotom-h, rotom-w, chansey, hattrene, and togekiss. It is also the speed control of the team. Exca is running a support option because I find set up to be hard to find opportunities for it, and toxic helps pressure mandibuzz, tangrowth, moltres, and more. Nihilego provides rocks and can pressure tangrowth, amoonguss, and threaten knock off on celesteela and skarmory which helps exca and noivern break later in the game. Sp. Def Mandibuzz is for pokemon such as Specs Hydreigon, Latias, Gyarados, Excadrill, Salamence, and Zarude, it can threaten these pokemon with foul play or toxic, either hindering them, or foul play to deny them setup. Rest Talk Primarina is for Kommo-o, Non-Pjab Shao, Hydreigon, and checks latias, it also helps to wear down the opponents with scald burns to make them easier to pick off late game from SD GOD BULU, especially with stealth rocks and no leftovers to rely on. Tapu Bulu is the late game cleaner, it also helps excadrill to help check or counter better and to gain more opportunities to spin due to the extra recovery, esp against nihilego, chansey, and jirachi. Darkest Lariet hits latias, slowbro-g, and aegislash, while close combat is the strongest neutral move against celesteela, skarmory, and tangrowth. LO SD can allow bulu to pick of weakened pokemon who have been worn down over the course of the game