The UFC has done (at least to me) an excellent job with its promotional videos for its major pay-per-views over the past year or so. UFC 182, 189, 193, and 194 all produced great trailers to build anticipation for the big fights headlined by their top draws, and you can add 196 to the list.
This newest promo for Rafael dos Anjos vs. Conor McGregor and Holly Holm vs. Miesha Tate was unveiled during last night's UFC Fight Night: Hendricks vs. Thompson broadcast. It's 30 seconds well spent, and you can watch it at the top of the page.