Suicune is a legendary that if you find where it spawns, you might want to make a base with a flat centerpiece there. As Suicune will always spawn at the same spot when it spawns with the exception if it has multiple spawn-points. In which case it will not be as common. Though camping at it's spawn can grant you acess to a full party, of pygmies or large ones. If lucky you could have a shiny suicune party!