This is an item that could be used similar to a perfume, but for kind of the opposite purpose. Boss runs during festivals can be somewhat frustrating when every few steps you run into a random enemy. It would be nice if there was a way to reduce the amount of common enemies either partially or completely for a # of encounters.

It would be nice if you could still run into themed/it could be stacked with a perfume, but it of course wouldn't be any more frequent, you just wouldn't have to deal with as many non themed enemies in between. Even if it would be difficult to program to work in tandem with a perfume/still allowing the player to run into wild themed, it still would be a nice item for boss runs (but maybe would be easier to get/cheaper in that case).