Reason U
Sorcery
Scry 3.
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Live 4G
Sorcery
Aftermath
Look at the top card of your library. If it’s a creature card, you may reveal it and put it onto the battlefield. Otherwise, put that card into your hand.

Another way to cheat emrakul out early? It's a total of 6 mana as a sort of 2 card combo, but you can also discard it and combo it with a worldly tutor or brainstorm for a 6 mana 3 card combo.