By Graeme McMillan, The Hollywood Reporter

A new featurette for next month’s X-Men: Apocalypse appears to confirm that Oscar Isaac’s mysterious new villain is indeed the first mutant to walk the Earth — and also reveals more about what he can do when he meets other super-powered beings.

“He’s all powerful and he magnifies all of [the Horsemen’s] powers,” Michael Fa ss bender (Apocalypse’s Magneto) explains at the opening of the Four Horsemen teaser video (watch above). “He’s decided to take judgment on the world, so he’s gathered a team of mutants to wipe out the human race.”

This mission statement helps make sense of Apocalypse’s declaration from the last trailer, repeated at the end of this video: “Everything they’ve built will fall — and from the ashes of their world, we’ll build a better one.” But who is the “we” he’s talking about: mutants, or just his followers?

Knowing that Apocalypse can increase mutants’ powers suggests that the scene where Professor Xavier (James Mc A voy) says, “I’ve never felt power like this before…!” — also repeated in this video —could refer to either Xavier responding to Apocalypse’s powers, or having his own powers increased by Apocalypse for some reason.

“They’re very powerful… the whole world is at stake,” adds Olivia Munn, who plays another of the Horsemen, Psy locke. Well, if you’re a lowly human, at least.

X-Men: Apocalypse is released May 27.

‘X-Men: Apocalypse’: Watch the latest trailer: