He likes Hero! He grins right back. He conjures the list he made earlier. "Okay. So. There are alternate dimensions. Everything we've seen so far suggests there might be infinitely many. A few of them independently invented a means of travelling between dimensions, and they met up and now conduct projects across a couple hundred dimensions, including the one I was born in and the one I live in. About half of dimensions have magic. Usually magic isn't transmissible - you get it by being born there, or else it only works while you're there - but some kinds of magic are, and so I have magic from several different magic systems. 

I have telepathy with a range of about ten miles with strangers, three hundred miles with people I know intimately, married couples can hit a thousand. I have a teleport with a range of 'anywhere in this and adjacent dimensions', I can target by coordinates or more precisely by an image of what I'm aiming for, and I can conjure a scale model of the place I'm aiming for and use that as my mental image. Behemoth is in intergalactic space lighteons from everyone. I can take people with me when I teleport; I could take a planet with me but it's hard to make sure it's spinning properly when it lands. I can turn things invisible, range is loosely visual. I can do illusions but they don't quite look convincing. I can heal humanoids, touch-range, to perfect health. I can turn people into birds, also touch-range.

I can make anything that is made out of atoms and not smarter than a snail. The range on that is measured in astronomical units and there's a volume-per-time limit but it won't come up unless I'm making a planet. 

In my home world you can compose magic songs that do all kind of stuff; recordings of those songs still work as magic and I have a bunch of them. In my home world you can also make magic artifacts that do all kinds of stuff; I know how to do that but it takes a really long time.

And some of the Earths in the multiverse are way ahead of yours and I can conjure 23rd-century technology for you. And your universe has aliens and if we think it's a good idea I can go hop around their planets seeing if they have any advanced technology we can use here."

"Legend—I must ask—are you sure—" starts the Deputy Chief Director.

"Yes. He has in fact teleported with much more precision than any other teleporter on record, and our observations on the field are consistent with him being able to do that. He has, as you've seen, conjured a chair, and the means of communication he chose to use was a prototype commlink that was thoroughly discontinued, destroyed, and all records of its existence purged—Hero made sure of this last part himself."

(Hero looks somewhat smug at this.)

"He did also communicate telepathically with me, which may not automatically mean he has general mind reading, but is at least suggestive. I and several other capes including Library of Alexandria and Hero have witnessed him heal people whose internal organs were all but liquefied with a touch. He has conjured the most stunningly beautiful building I've ever laid eyes on or even heard tell, and the inside is somehow even more stunning. He sang like no human I heard, and—

"All of this may not necessarily automatically mean he is speaking the truth. But I think we've seen enough to at least hear him out and see what evidence he has of this." He sounds oddly protective.

"I'm happy to prove it. I can take you all to the Moon if you want?"

"And you'll give us twenty-third century tech to help us breathe?" Hero asks, sounding enthralled by the possibility.

"I could but also I can make air lots faster than it dissipates in vacuum and then you can just walk around and breathe normally. I guess the technology way might feel safer if you're not used to demons."

"That's dope!" enthuses Hero.

"Hero," Legend says, smiling.

"...I mean, fascinating!"

"I would like to see the Moon, and I'm sure Deputy Chief Director Guerra would, too, if only to provide some more evidence of your powers," Legend continues. "Eidolon should come with, in case anything goes wrong, but I don't think it will."

"It won't. Now?"

The Deputy Chief Director looks a bit uncomfortable with this but when Eidolon nods slightly accedes. "We are ready," the hero says, and his voice reverberates unnaturally with something that's almost an echo.

"Okay."

And they're on the Moon, and he immediately creates atmosphere all around them.

Hero's armor sprouts a backpack that grants him flight. "Wow!" He starts flying around, looking at stuff and at the Earth and turning upside down.

That requires making sure there's air around wherever he's flying. He tracks him anxiously. 

The Earth is pretty from here. 

He shoots Eidolon a slightly defensive look. 

If Eidolon notices, he shows no evidence of it, and merely looks around.

"This could be an illusion of some kind..." muses Guerra.

"It's not," declares Eidolon, and that's that.

Hero floats back to the group, grinning widely. "And you can go anywhere?"

"Anywhere in this dimension or an adjacent one, but exploring for new dimensions is dangerous so I shouldn't do it, might not come back."

"This is truly astounding," Legend tells Epic. "We will be able to help so many people."

"We should return and discuss your other resources, then," Guerra concedes.

Pop.

"We will be able to help so many people," he says cheerfully. "The record for someone acting alone is thirty five billion but I have way more magic than she did."