I've faced that many times before. You don't need NAC, if Nrvnqsr Ex-Shields an IAD air attack, he'll do his LA and the opponent will either fly over him because of the momentum or perfectly land at the very place Nrvnqsr is at. After the LA, the other fella will pop next to Nrvnqsr. If it weren't for this, I'd have beaten my friend twice with LA Finishes T_T