Player A and Player B both have an "Emrakul, the Promised End"Emrakul, the Promised End and Player A casts his Emrakul and on Player B's turn, that he now controls, casts Player B's Emrakul. Does Player B get to control Player A's turn or not as the card states "When you cast Emrakul, you gain control of target opponent during that player's next turn". Who is you in this case? And what would the sequence of the following turns be?