The series of poker tournaments sponsored by the corporation formerly known as "Harrah's entertainment" uses what playing cards as their official cards?
Copag: Copag is a company based in São Paulo, Brazil. Copag:  With the recent poker boom, Copag's business has quickly grown. Copag:  That same year, Copag became part of the Cartamundi group. World Series of Poker: The World Series of Poker (WSOP) is a series of poker tournaments held annually in Las Vegas and, since 2005, sponsored by Caesars Entertainment Corporation (known as Harrah's Entertainment until 2010).
i don't know