If I were declare an infinite milling loop, with something like the Saheeli modern combo someone posted earlier, and my opponent is running a one-of Emrakul, the Aeons Torn in their main deck, can I declare a shortcut that allows me to mill them until the iteration where Emrakul is the last card in their library, and I keep it there for them to draw?
No, you can’t. You can’t say how many iterations it will take, so you can’t loop it and it’s slow play to attempt to engineer the situation manually.










