I suspect we can all agree: the little one is Elves, but the big one could go either way
Zetalpa is keyword soup, and they're good keywords, but eight mana for a creature with no impactful abilities is rarely worth it
High Market 2/10 A reliable and hard to disrupt sac outlet card but sadly it is low return and just a once per turn effect
Our main goal, first and foremost, is to not fall to the initial onslaught of Delver, backed up by Daze, Wasteland, and the deck specific equivalent of additional disruption, be it Stifle, Hymn to Tourach or anything else
Casting Emrakul is exactly what you'll want to do since when you do, you get to gain control of an opponent's next turn, giving them an additional turn immediately afterward that they will control