[Aaaand suddenly Kurt remembers how Todd and Pietro are from different times than he is, that Magneto apparently pays attention to his charges, that there's a woman who's apparently the professor...]

Um, Apocalypse the mutant, not Apocalypse the... thing. Not that it's a mystery where he got his name or anything. His real name was, well, something Egyptian. Entschuldigung. Mostly I was paying attention to my part of the plan more than the history lesson.

[Which turned out to be mainly lying there unconscious after Apocalypse swatted him like a gnat. But he doesn't have to own up to that.]