Dressing up as Black Panther's worst enemy this year? Then don't miss out on our Adult Erik Killmonger Mask With this look, you will receive just the mask you need to take Wakanda over for yourself as King. Featuring a black and gold Killmonger mask with highly detailed accents and cat ears on the top, you're going to feel like a true villain sporting this mask. Pair with a matching costume from our site, and you'll really be looking the part!