They all happen to be Red, which certainly fits into the Gruul color combination, but they just didn't feel like Gruul cards to me
While he's part of the main set, not the Commander precons, I don't see Zell Dincht being a Standard-playable card
Youll get four rare wildcards the first four times you complete the Track and then itll switch and give you one mythic wildcard before restarting and cycling through again
There are some pretty chonky flyers in the decks too, with Brainstealer Dragon being at once a great card for the exile-and-play-opponents-cards archetypes, but also a great fit for reanimator decks that want to steal other players stuff
Meeting a player who doesnt include them in their deck is like encountering an outdated interpretation of the game
Creating a 3/3 Golem when it enters the battlefield, as well as at the end of your turn, provided three or more artifacts entered the battlefield under your control this turn