Les cinq cartes Patrol Hound, Phantom Whelp, Filthy Cur, Mad Dog et Wild Mongrel, de l'édition Odyssey, forment un cycle de chiens.

Source ("[...] until Erik Lauer joined R&D. I knew for a fact that Erik Lauer loved dogs. In Odyssey, I'd made a cycle of dogs specifically for Erik (at Randy Buehler's request—Randy and Erik are old friends).")