Also similar to lands, one of the big reasons that Commander 2018 was so poorly received is that the decks were severely lacking in good colorless cards (in fact, for half of the 2018 decks, the only colorless card worth mentioning was Sol Ring, which has been in every Commander deck since the start of the series)
When Teferis Protection resolves, you keep everything while the rest of the table deals with the fallout
The color includes any mana symbols and their activated or triggered abilities
If I draw one of the significant upgrades, like Anointed Procession, that I added to the deck, preconstructed decks generally wont be able to stand up to it (as long as they dont remove it immediately)
Murders at Karlov Manor, Outlaws of Thunder Junction, Bloomburrow, and Foundations Jumpstart (2024) Bloomburrow vision design, we toyed with the idea of Turtles being the green-blue creature type but ended up going with Frogs