Regigris

See Legendary titans Bulbapedia.

Have the Regis (Legendary Titans) replace the Serpent Trio as roaming warriors? As their trivia is related to Greek myth anyway (titans). Do, they have returned home to Ciprys; as they were originally sealed away in Hoenn and Sinnoh. Or have their original versions: Regifire/Regipyro; Regiaqua; Regigrass/Regivine; Registrong/Regimight/Regimite (Fighting?). Regigigas returns to lead them? Then have Zeurelic, Hadatkos, and a serpentine legendary as a trio?

Regigris (from verdigris: from old French, vert de grece 'green of Greece')