Secondly, and more broadly: in an 'unknown' environment, particularly a post-large-set new environment, new decks are generally likely to do better than established decks, because it's much easier for the new decks to prepare for an established metagame than for the established decks to figure out which of the new decks are most critical to adapt to
If your Active Pokmon has "Hisuian" in its name, draw 2 more cards
Mordor on the March Mordor on the March is flavorful and deadly
That means Forests like Bayou, Dryad Arbor, Murmuring Bosk, Temple Garden, and Sheltered Thicket
The language may be different, but you'll find the same SAR artwork from Mega Brave and Mega Symphonia in Mega Evolutions