Founding Ancestor, My Sect's Disciples All Come from Card Draws

Du Yao transmigrates and becomes the Patriarch of the Heavenly Dao Sect. The good news: he has a card-drawing System. The bad news: the card-drawing System is all he has. If he wants to enjoy drawing cards endlessly, he needs a constant supply of sect prestige. So Du Yao becomes a heartless slave driver... No, the most considerate sect patriarch ever!