A Moss Rock is a rock found only in Forest Biomes. It is used to evolve an Eevee into a Leafeon. For this to work, the Eevee must level up within 10 blocks of the moss rock. Unlike the Icy Rock, this rock will not drop a item so that it can be moved around. So if you want Leafeon, it is recommend luring other pixelmon in around the area so you can defeat them within a 10 block radius of this rock.