The two clubs will face eachother potentially four times in 18 days at home and in Europe.
Valdes reminded his rivals that Barca have had the edge in recent Clasico meetings.
"Were Real Madrid's (Clasico) victories in black and white or in colour?" the goalkeeper joked on Antena 3.
"The more Barca-Madrid games there are the better," he said. "It will make it more intense and will be better for football."