It would be better if the Ancient Minister was controlling him.
Here's an idea I've put up before.
Claus, Lucas, and Kumatora are having a good time with the Magypsies. However, one of the Magypsies comes in and says that a large army of purple things are all over Nowhere Island. They send the three to take care of the problem. They eventually meet up with Pokey Minch. The fight results in Claus(who isn't playable) falling off a cliff after a freak accident where Lucas knocks Claus off the cliff.
Lucas and KT go down the cliff to see if Claus is still alive. By the time they get where he fell to, he's not there.
<scenes missing>
Lucas encounters the Ancient Minister and the Minister sends a cybernetic Claus to get rid of Lucas. *The following is all cinematmics.*
Claus tries to kill Lucas but a woman's ghost constantly interferes by trying to stop Claus from fighting. In the end, Claus prepares to use a Thunder Strike on Lucas but his Franklin Badge reflects the attack and Claus becomes unconscious. When he's unconscious, a strange purple thing leaves Claus' body and Claus awakens.
<Insert rest of Subspace Emissary storyline.>