The core Synchro monsters used at the time were Stardust Dragon, Colossal Fighter, Goyo Guardian, and most importantly Brionac, Dragon of the Ice Barrier
Broodmate Dragon was a marquee finisher in basically any deck that could cast it when it was Standard legal, and I think people are really sleeping on Kalonian Twingrove
Each new set brings new announcements, and it is clear that Disney Lorcana is going to keep bringing excitement for both players and collectors for a long time
You'll wind up flopping your entire deck onto the battlefield, so make sure you're running Concordant Crossroads so you can swing on the same turn, and make sure you have a way to get Nikya out of the way so you can actually cast Primal Surge in the first place
You can see this in the weekly announcements, new channels, and a concerted effort to be engage more through proactive messaging and interactive conversation
Good Orzhov commander, but this isnt the rat to put at the head of your rat deck