While this is unlikely to stop a game-ending threat, being able to stop irritating early-game plays for just one mana is not to be underrated
Eldritch Moon's last new mechanic, Escalate, has a couple of cards that were spoiled in this article from Wizards of the Coast, the first of which is the Instant-speed Borrowed Malevolence
You can have Dee Kay's ability resolve before those visit abilities, after them, or in between any of them
Contents: 100-Card ready-to-play Dominaria United Commander Deck
The story will be told over several consecutive sets (likely coming to an end in Q2 2023 with two sets released in quick succession, currently codenamed Marathon and Marathon Epilogue)
Engle Mill payoffs in Magic: The Gathering are cards that benefit you when your opponents libraries start disappearing