These cards were all the very first promo cards available for purchase in a collectors' set over a year before The First Chapter's launch
If at the beginning of your end step there are more than 8 cards in your graveyard, the enchantment flips and becomes a 4/4 creature with flying and Crew 1, which allows it to become an Artifact creature until end of turn
Come Along, Children allows players to play a character from their discard for free, as long as it costs two or less ink, whenever its played and whenever it quests
The list of nonbasic land types in the reminder text is exhaustive as of the release of Modern Horizons The full list of land types can always be found in the Comprehensive Rules of Magic
Providing 2/2s for casualty purposes takes no effort at all with token producers like Talrand, Sky Summoner, Jadar, Ghoulcaller of Nephalia, and Poppet Stitcher