An obscure enemy of the early X-Men, then of Ka-Zar and Mockingbird, back in the days.
He was never quite developed but he has ties to Latin American mobs, the Mayan gods, the Savage Land, oil cartels and other uncommon story elements. So there's potential here.
This is where our chronological series of profiles for Mockingbird (Dr. Barbara "Bobbi" Morse) starts.
So, her early 1970s Ka-Zar (lord of the jungle !) material with the bright red rompers. At this point she's not Mockingbird yet.