https://cecilbowen.github.io/pokemon-sandwich-simulator/just make anything that has either fairy or steel encounter 2, and if you want marks or a small/big one, do anything that has those powers. with encounter power 2, 90% of what spawns will be of the types you want to find.
but also bro, if you need herba go to the raid general. raise up a raid cat and you'll be drowning in herba mystica
