Gellert Grindelwald's lightning bolt curse

This was a curse used by the Dark Wizard Gellert Grindelwald against Newt Scamander in the New York City Subway in 1926. It manifest itself in the form of a bolt of white lightening. It is quite painful to be struck with, as Grindelwald used it to torture Mr. Scamander upon overpowering him, and potentially deadly.