It's fairly easy in the end.
Drop land and control the board until you can cast
Apex of Power to get access to
Nexus of Fate for an extra turn.
Later gets shuffled back into your library, so you can simply cast a new
Apex of Power to find it again.
While this won't be any sorft of infite combo, you can re-access your already used Apex'es by playing cards like
Flood of Recollection - even in the turn you play Apex to begin with due to the 10 mana gain.
Chandra, Torch of Defiance (while being a win condition as well),
As Foretold,
Primal Amulet help accelerating this plan, and ultimately you win with burn damage from cards like
Banefire and
Guttersnipe.