Board Thread:General Discussion/@comment-71.180.122.196-20130713222416/@comment-29458028-20140820091751

I don't want to off topic.

The Alduins are the same model, obviously, but another Alduin is used for the cell in Sovngarde, that is the killable one.

The other appearances use a Skyrim Alduin, it seems. Their stats are different and the one in Sovngarde is not essential or unkillable.