I've had a chance to play quite a bit with this card in the sideboard of Oath, and I think it is great. It works in almost every matchup. I've even found it to be great tech in the Oath mirror. I won a game using only this card last night. I've used this to combat the newer Karn-Key decks. They take control of the game so quickly that I couldn't rely on Dig Through Time to pull me out of the situation. This card stops the Crucible of Worlds plan and stops Inventor's Fair. I really like the design of this card.