The character seems a little similar to the Phantom, with the inherited title and skin tight outfit and fictitious African
country Bangalla. I wouldn't accuse Jack Kirby of borrowing, or even Stan Lee these days. Besides, there were also other Phantoms in 1939, not to mention the one who in 1963 first stole the Pink Panther diamond from the Indian/Arabic
nation of Lugash. Maybe next time a Pink Panther sidekick can diversify the overwhelmingly hetero cast.
The Avengers 3 MacGuffin, the Soul Stone, could be in some such diamond. Since the trailer shows
scenes in Zamunda maybe it's in a bottle of Soul Glo.