Here is an example of a pretty all-in Emrakul, the Promised End decklist: Creatures (12) 1 Dragonlord Silumgar 1 Den Protector 1 Nissa, Vastwood Seer 3 Hangarback Walker 4 Deathcap Cultivator 2 Emrakul, the Promised End Planeswalkers (4) Lands (23) Spells (21) Obviously Nahiri, the Harbinger is a natural fit for Emrakul, the Promised End, and Patrick Chapin wrote last week about a bunch of different versions of Emrakul, the Promised End decks, many of which included the Boros planeswalker
[-1]: Return target creature to its owner's hand
Lastly, Kindred Summons acts like another Myr Incubator but even better, doubling the number of Myr creatures you have on the battlefield by finding that many Myr cards from the top of your deck, all at instant speed
Best Wizard Payoffs Since wizards as a collective offer such great variety, so do the cards that support and synergize with them