I have just read up again on the fluff of Constant Drachenfels due to the new DLC for Vermintide (Castle Drachenfels).
Now, I must say Drachenfels is an amazing and totally awesome villain. Poison Feast... how much more evil can you get?
Given that he is the oldest being in all of the old world (living before the arrival of the slann) he must have accumulated vast knowledge of pretty much everything.
However, he doesnt seem to try to ascend to godhood or feel like eradicating all living beings like Nagash.
Is it actually ever explained how he got his powers in the first place?

After reading about the whole "the Nameless" stuff in the end times I was wondering how he compares to Nagash in power levels? (well, at the height of his power with memories...)