In my data set of decklists, the most-played nonland cards across all main decks and sideboards provide a first bird's eye view of the post-ban Pioneer metagame
Even premier auction houses have begun to partner with grading services, most notably Heritage Auctions partnering with WATA to authenticate and grade all of their retro video game items up for auction
Nightmare Moon / Princess Luna provide an interesting multiplayer functionality by making friends while also referencing Nightmare Moon's affinity for the night and cards with Moons on them (Blood Moon, anypony?), and Twilight's abilities are obvious as the Princess of Friendship even if there aren't any Applejack, Fluttershy, Pinkie Pie, or Rainbow Dash cards to go with her yet (this means Wizards needs to get on the ball!)
Pokmon V made their debut in the TCGs Sword & Shield expansion as more powerful versions of basic Pokmon, with more HP and stronger attacks, but with the risk-reward that they allow your opponent to claim two prize cards when defeated
Revel in the confused gazes of your opponents, as you ramp hard into a few changelings, drop Dragon Tempest sniping all their planeswalkers
1 Arven is the Best Supporter Card in the Meta Currently First Printed in "Scarlet & Violet Base Set" Supporter cards are often utility pieces in a deck and not every deck plays the same supporters
