The idea of the deck is to ramp into the recently released Enter the Infinite by setting up with a turn 3 Gifts Ungiven for any combination of Heartbeat of Spring, Early Harvest, Eternal Witness, Enter the Infinite, and Noxious Revival based on what you could possibly have in your hand. Based on the cards which you could already have, you could slightly modify your Gifts pile with things like Snapcaster Mage to flashback an Early Harvest or Enter the Infinite, Drift of Phantasms - Noxious Revival - Heartbeat of Spring - Early Harvest if you need both Heartbeat of Spring and Early Harvest and have an Enter the Infinite in hand, or any of your sb hate cards you bring in during later games.
Once you have enough lands, possibly as few as 4 or 5 with enough redundancy and Heartbeat of Spring on board, you Early Harvest enough times to have a minimum of 15 mana to play Enter the Infinite, drawing your deck and placing a mountain back on top. Once you achieve this, Early Harvest from your hand, and then if necessary, gigadrowse the opponent's lands, and go to main phase two to drain their pool. Then play the rest of your Heartbeat of Springs, then Early Harvest as many times as you feel is necessary. This can also be supported by your "extra" copies of Early Harvest with Eternal Witness, Snapcaster Mage, and Recollect. Then, Search for Tomorrow that mountain from your library into play to cast your choice of Banefire or Blue Sun's Zenith on your opponent.