Ultra Necrozma ex is your primary attacker
The curses generally lean toward hating on one player, but this often leads to one clear enemy for you, and low resources for the rest
Green Cyclone, Storm Surge, and Earth Shower give you different starting points built around Venusaur and Blastoise, plus supporting types that match the sets overall spread
Once you have both goblins in play, cast First Day of Class (you could grab a lesson if you like, ideally Introduction to Prophecy, but in most cases it doesn't matter)
Use them for most of my error and Chansey collection
I had a Bartz and Boko design in the set that needed to change because it didn't work in the rules (classic game designer problem), and I thought it would be a great fit for this role