[@Savato]

Oh mess them up. Das Jotunheimen would wipe him from existence if he defects. But he will probably just stick with them for now, getting information and probably effect the organisation in some sort of positive way. Because Nathaniel's good like that. He just needs to kind of shift them away from hunting troublemakers (so there isn't some sort of war between the Dark Outliners and his organisation) towards controlling more Terminals. 

A war between the two would be.... Shitty

Edit: I would use the organisation sheet for his Summons, right?