Formats like Modern and Pioneer usually require you to deal with lots of different permanents, and the flexibility of Skyclave is king in those cases
Extended-art cards are only available to be opened in Collector Boosters
Like many Final Fantasy singles, Lulu saw a massive increase in demand once prices calmed and supply hit the marketplace, but it was a smaller spike in demand near the end of June that sent Lulu on a price spike
While thats not strictly true Ardenn makes a great white partner for a Curses build its going to be true for most deck builders
This makes Goblin War Strike devastating in 1 vs 1 games, though in Commander multiplayer games, dealing all the damage to just one opponent isn't optimal
Jumpstart boosters reduce the mental load it takes to build decks, and helps show how cards work in more situations with fewer games to play