There is a total of 1008 pokemon, 8 eevelutions and 1 eevee so 1008 pokemon out of 9 to choose from. Some mons are not in violet, so that number decreases to 400 pokemon. 400 pokemon can be chosen at random in gen 9 randbats subtract that by nine, and there's 391. 6 pokemon in one team subtracts the total eevees by 3. So that mean 6/394 chance to get a all eevee team prob, idk if its right but maybe