Setup the Altaria/Skwovet system. Then search out Mustard to find your ideal attacker for each matchup. Urshifu against Mew/Gardevoir, Sirfetch'd against Miraidon, Beedril against Lugia. Single strike scroll of scorn could be good against Duraludon. I don't expect this deck to win any tournaments, but I think it may be interesting to play.