Board Thread:Mortal Kombat X/@comment-49.193.83.176-20140901102236/@comment-21005855-20141111223416

Which ones? Damashi is the avatar of Onaga and Onaga was introduced in Mortal Kombat: Deception. He was mentioned in Mortal Kombat: Deadly Alliance but only as a concept from the Deadly Alliance themselves.

As far as Shujinko goes, again, he was introduced in Mortal Kombat: Deception.

The Kamidogu is a weapon created to separate and keep separated The One Being.