Gen 2

suicune is one of the three legendary dogs. he is a ice/water type he is going to be added to pokemon go soon same for the rest of the gens other than gen 1. Riacu is a eletric type he the the most known of the three he also can mega evolve. Enti is a rock/stone type he is the weakest of the three dogs but the upside is he can mega evolve.