Sure, its somewhat restrictive, since you can only get cards with Flashback, but these days there are 184 cards with that mechanic, so your toolbox can get pretty big
Common: 72 cards Uncommon: 54 cards Rare: 48 cards Super Rare: 18 cards Legendary: 12 cards Ursulas Return Ursulas Return explores the darker side of Disney tales with 224 cards, focusing on villains and adding new layers of strategy and intrigue
Krark, the Thumbless leads to funny, coin-flippy games, at least until you bust out cards like Spark Double and a partner commander like Sakashima of a Thousand Faces to start breaking things
Thanks to flying enablers that give your cards a boost, you can
Post board we get access to the same Silent Gravestone tech which really lets us play our own game with Jump-Start cards and Phoenixes while shutting down a lot of what Golgari decks are trying to do