I cannot tell you what the Architect was...unique, certainly, dangerous...without question. It was motivated to end all Blights forever...something that it thought should appeal to every Grey Warden. That is what those brooches were for. [It might have been so long ago, but her memories are as vivid as if it had been yesterday.] I cannot say if they have been destroyed or not, it has been a long time since I last inquired about them...but I suppose, if they have been kept for research it might be in an effort to understand how the taint works.