Pictured above are the front and back of an opened cardback for Mastim. He was released as part of the third Comandos em Ação series in 1986. The figure was released in the U.S. as Dog Handler, Codename: Mutt. The term "Cão Bravio" translates into "Wild Dog".
Note that while most of Mastim's accessories are the same as the ones included with Mutt, the helmet is different. Instead of the unique helmet that Mutt came with, Cão Bravio came with a recolored black version of the normal G.I.Joe helmet. Note that the card artwork has been repainted to note this accessory change.