 Prior to the purchase, Mega and Mattel were partners in adding Mattel brands to Mega "Worlds" plus a line for Mattel's American Girl that competes with Lego's Friends line.Three years later, on February 10, 2017, Mattel announced that it was introducing Mega Construx, a new sub-brand of construction sets designed for children four and up as well as adult collectors.Construx's first license property line was Pokémon, launched in mid-2017.