Asphyxiate

In-game name:Asphyxiate Server:Gold Pokemon ID and/or screenshot:36197882 Plz delevel my mareep My Mareep did not evolve to flaafy. after it was deleveld , i did not get any prompt to evolve it in the next battle . now it s again lv99 . plz help my poke evolved once, but second evo to ampharos failed . plz help me again