[quote]In earlier appearances, Basil Karlo had no powers, but wore a clay mask based on one of his movie roles. In recent comics, Basil Karlo's body is made out of mud upon taking the DNA of Clayface III and IV, enabling him to gain the combined powers of both. In The New 52, these are improved to a level in which he can mimic the DNA of others.[/quote]

Pretty much [i][u][b]all[/b][/u][/i] of the Clayfaces (and there have been more than I was originally aware of) have all been transformed into some type of mud/clay type form.