Hello, it is not possible that you have a level 15 Shelgon (evolve at level 30), pretty sure it is the Shelgon you got from the Dragonair trade at Blackthorn
You can have 4 accounts with your IP (only 2 can do PvP if you want to get into until you dont get top 25 in both) you can do the bosses with your 4 accounts but on one server only (for example you cant do bosses in Gold if you are in Silver)
Rn just up to gen6 and some gen7-9 mons (gen9: Farigiraf/Annihilape/Dundunsparce)
Gen7: Kommo-O/Mimikyu/all the alolan form/Dhelmise/Blacephalon/Guzzlord/Ribombee/Lycanroc/Wishiwash/Komala/Pallosand)
Hello, you should try this:
Raise the happiness level again back to max happiness (255) by visiting the groomers which can be found in Cerulean City House 5, Goldenrod Underground Path, outdoor market in Slateport City, and Hearthome City
No no, XD001 is Psychic/Fly type
You mistake with Baby XD001 which is only Fly type and Shadow type.
https://videogames-fanon.fandom.com/wiki/Shadow_Lugia