They arent the most efficient cards, and I dont like the double color pips on two of them in a five-color deck, but the flavor is on point
Theyre your path to infinite mana, life drain, or mill, or to a huge commander
Theres a whole lot to digest between the Invocations, the new Afflict mechanics (which is a modular and keyworded version of [casthaven]Vedalken Ghoul[/casthaven]s ability), the evolution of Exert to tap abilities, the awesome design of [casthaven]The Scorpion God[/casthaven], and the Gatewatch losing their first big fight
As theyre enchantments, Rooms trigger constellation when they enter the battlefield and, more usefully for Duskmourn, eerie
Ghalta, Stampede Tyrant The kind of card that makes a green player giddy, its more likely that the face commander is Ghalta, Primal Hunger, since power matters. Invasion of Ikoria This might be blacklisted as a too-complicated card for the introduction to the format, but a base price of $11 might be in the sweet spot