The Sinnoh region welcomed two new Eeveelutions to the world of Pokemon: Leafeon and Glaceon. Evolving them in Diamond/Pearl/Platinum was different than Eevee's other evolutions because it required trainers to level up their Eevee in specific locations. In certain generations after Sinnoh, Leafeon and Glaceon could be evolved from Leaf Stones and Ice Stones respectively. Now, with Brilliant Diamond and Shining Pearl, the original method of getting Leafeon and Glaceon has made a return.
Like
Read more on gamerant.com