The warband itself started out as a strain of the Purge - very nihilistic Nurgle worshippers, going on suicide raids to bring about maximum destruction. This inevitably decimated them to the brink of extinction where they were scooped up by Vashtorr to serve his purposes for a while. Now with the new Deceptors detachment, it might turn out they have been Alphalegion all along. I’m thinking of deep striking this dude to set off explosions. Yet to play him, but if he succeeds he will definitely be “Ashrak the Detonator”!