In "Animal Crossing: New Leaf," I used my ax to cut down a tree. To my surprise, there was a Triforce mark on it! What does this special type of tree stump do? What is the probability of getting another one?
This is a 'special' tree stump - they are a certainty when you cut down trees using the silver axe, but can be created by any axe type with varying probability.
Special tree stumps can grow mushrooms year-round, rather than only during the mushroom season.