>>46546058Only mons with more than 139 base speed.
So Dragapult, Zeraora, Accelgor, Zacian-C, Calyrex-Shadow, Deoxys-N, Deoxys-A, Electrode, Pheromosa, Ninjask, Deoxys-S, and Regieleki. Also Mega Mewtwo Y, Mega Sceptile, Mega Beedrill, Mega Aerodactyl, and Mega Alakazam.
That's a pretty small number of mons, and even fewer of them are actually viable.