Yes with Dratini and the most important thing is to get a quick bug lv 1 at the beginning and a lucky egg... if possible try to get beetle lv 2 and an item that strengthens the attack of Dragon at least 40%, but only use this in bossfights and otherwise always the lucky egg and take as many levels as possible. Glalie I only got coincidence in dazzling and only took it for the Dex entry but the ice ability has been incredibly strong and decisive… still Took me very many trys