Board Thread:Theories and Speculation/@comment-30736821-20170426173032/@comment-25122992-20170426174435

I simply don't think that's the case. Today's episode has clearly implied that the spirit which influenced Denki/Metal is some kind of a summoning creature, but a special one, something chimerical akin to Baku, or, to be more specific, a Nue, and it shares some mysterious connection to Boruto.