Last night Lovell and I got in an 1850 point round of 40k, Kingbreakers versus Necrons, straight up basic Annihilation.  I think this was the first game I’ve won against Necrons since the new book came out, and it was looking iffy until somewhere around turn five of a six turn game. Notably to that end, he was not using the Decurion formation (and its global 4+ Feel No Pain); I believe it does not permit him his beloved Destroyers.