Each Supplement is frak savage. Flamer aggressors with that Salamander stratagem for automatic 6s for number of hits is going to be painful, along with their ridiculous amounts of re-rolling everything. I honestly think people are sleeping on the Ravens (I get it, they are kind of boring, but so are Imperial Fists and people love those yellow bastards). I expect there will be a major focus on the supplements in the April balance pass.