A idea that would make the sniffer more useful

My idea is to give a use to the sniffer other then just smelling plants. Like finding an ancient city because there pretty rare and hard to find so what if there was a new plant that you could give to the sniffer to help you find the ancient city, kind of like those dogs that help find stuff for police officers. The plant can be grown with a seed where you can find it with the sniffer but it's pretty rare like 4% chance. When you grow the seed it will turn into a flower that you can give to the sniffer that will lead you to the closest ancient city. Maybe the name of the flower is the ancient flower. Maybe another way is buying it from a wandering trader for a quite expensive price like 30-40 emeralds. I would make it cheaper but for such a good place with good loot and dangerous mobs it should be more expensive then enchanted books.