Yeah I also got Skymin an second try as well Still no luck on the Malamar/Arcanine/Aurorus/Dragalge/Goodra though
Sorry... I'm just not fast at Shaymin XD
Malamar is just a high combo w/ super effective damage. Likewise with Dragalge, from what I can tell. Arcanine requires growlithe as support and high combo, Aurorus requires amaura as support and high combo, and Goodra needs a flawless fairy (don't quote me on this) capture on Sliggoo.
Regarding Meloetta, I think she's pokedex completion. She popped up for me, no flawless blissey required. Just like Shaymin.