The reason for Durant's success is the failures of the opponent. Durant like 6 Corners(imo) utilize your opponents misplays. Something as simple as do I attach to this or that can cost you 8 cards from your deck. A great Durant player know their deck inside and out, with the use of Rotom can make things scary for you. I will NOT say Durant is the BDIF, but I will definitly say it is the most feared simply because of it's speed. Simply being conservative will NOT win you the game. It is a winning strategy, but can cost you late game by a big swoop of an attack by Rotom.
Posted with Mobile style...