I'm not sure what the fuck is going on here, and just what Urza did with his science fair project that causes a gigantic face that's all teeth with a monocle, and trumpets and little whirly-copter things jutting out of the side of the heads, but it looks insane
It might take a Mono-Black Devotionstyle shell that can take advantage of Subversive Acolyte's two black-mana symbols for it to see heavy play
Both Dimir Terror and Elves were popular, but both had subpar performances (despite Dimir having two Top 8s)
Black has always had its share of powerful cards throughout MTGs history, be it powerful Alpha cards like Dark Ritual and Demonic Tutor or more recent cards like Grief and Archon of Cruelty
Dragon Shield makes the best MTG card sleeves
I think Id rather play any Infest variant before running Extinction Event, but if youre hard up for sweepers in your list this is a fine bit of redundancy