I started off playing the Pull from Eternity version and liked it, while explosive, the deck just didn't click for me, yeah I turn two'd a lot of games, but finding Narset/Vengeance seemed a bit harder than it needed to be, so I went with a spell and land base closer to Grishoalbrand and this is what I am currently testing in the main.
4 Brilliant Ultimatum
1 Emrakul, the Aeons Torn
4 Enter the Infinite
4 Faithless Looting
4 Fury of the Horde
5 Swamp
4 Temple of Malice
4 Goryo's Vengeance
4 Narset, Enlightened Master
4 Omniscience
2 Cathartic Reunion
3 Relentless Assault
2 Blackcleave Cliffs
4 Simian Spirit Guide
3 Lightning Axe
2 Mountain
2 Blood Crypt
4 Bloodstained Mire
4 Brilliant Ultimatum
1 Emrakul, the Aeons Torn
4 Enter the Infinite
4 Faithless Looting
4 Fury of the Horde
5 Swamp
4 Temple of Malice
4 Goryo's Vengeance
4 Narset, Enlightened Master
4 Omniscience
2 Cathartic Reunion
3 Relentless Assault
2 Blackcleave Cliffs
4 Simian Spirit Guide
3 Lightning Axe
2 Mountain
2 Blood Crypt
4 Bloodstained Mire