A human appears.  He's unusually tall for his species, at over 7 feet tall.  His clothing is leather and durable cloth, finely made with embossed details but more worn down from use than custom-fitted clothing of that quality is usually allowed to get.

He stumbles and backs up, moving to a defensive posture.  

There is an eclectic collection of sixteen beings. Mostly humanoids, but there is a large bird and a equine with a single pearly horn.

"We are terribly sorry for bringing you here. We mean you no harm. Do you have any pressing needs or anything to address besides clarifications of what is going on? Something urgent back home?" This is spoken by an eleven feet tall four-armed humanoid.

"Nothing urgent, no.  Where am I?"

"You've been transported to the moon of Actana. In another world."

He's still confused.  Perhaps that hadn't been the right question to ask.

"Why did you bring me here?"

"Our world has just went through a catastrophic that killed most people and left the place inhabitable. We are trying to find a place to go. We tried other alternatives, but we currently we have decided to resort to bring people from other worlds and interview them for the possibility of taking refugees."

"Sorry to hear about that."

"What sort of catastrophe?  Is it the kind that's likely to reoccur or follow you?"  Or are they dangerous to Tle themselves, though he can't exactly ask them that.  They don't look hostile, but they probably wouldn't even if they were.  

"The entirety of the thing developed through a long extended period-"

"Some so-called-Gods wanted to commit suicide and drained the life and light out of the world. And created some monsters. We don't think the dead gods will follow us. Because, they are dead." Says the red-orange bird.

"Well, yes. That."

Huh.  He considers that.  

"Are you looking for societies to integrate with, or wilderness?"

"Either. Real factor is if it can take a few thousand people for at least the next six months or so. Wilderness, or unclaimed land has some long term benefits. But having a place to put people and expect them to survive in the near future is more important."

"Thousand?  When the refugees from MuurKari showed up on Tle there were a hundred million."  He blurts that out without thinking, the surprise causing him to forget his hesitation with speaking.  He'd been expecting something more of that size.  

"We have three thousand on the moon, a few thousands more in the cities in the surface, maybe that would reach millions, but most of our population did die, Sir... I don't think we have properly introduced ourselves. I am Pherikles."

"I'm Raen'Vine, Champion of Diamondeye."

"Diamondeye? Do you have further questions?"

"She's the God of Preservation.  

"I'll probably think of a dozen questions as soon as I say no, but there isn't anything vital."  

"Understood. You're currently being held inside there." He points to an octagonal shape around him with his right upper-most arm. "Do you mind if take a look at you to be sure you are not sick or something so we can let you out and talk somewhere more comfortable?"

That completely baffles Raen'Vine for the few seconds it takes for him to realize that if they don't know his name they probably don't know his mage-power either.  

"Go ahead."

An individual steps forward and squints at Raen. Anything unusual about his biology? Is he carrying a plague? Poison?

There is a lot unusual about his biology.  

The most obvious thing is that his heart has at some point been replaced with a crystal of similar size.  It moves the blood around it via magic in a smooth heartbeat-less way.  There are also diamond cabochons embedded under his skin in hard-to-notice locations.  Presumably those are also doing something, though they're not active at the moment.  A kangaroo-like pouch holding various objects is hidden in his torso.

Beyond that, he's a shapeshifter who has optimized his body for survival and convenience in hundreds of ways through the centuries.  Stronger bones, stronger skin.  The spine redesigned to be less terrible.  Eyes which can see into infrared, ultraviolet, and the planet's magnetic field.  Changes to the neck which make him harder to decapitate or strangle while still retaining most of the neck's natural motion range.  Entire systems, like the sinus cavities, look like they've been taken apart and rebuilt intelligently at some point.

There are a number of things that possibly look worrying, but are presumably intentional given the rest.  Nothing that is dangerous to him, or to anyone around him, at least.  He is as healthy as it is possible to be.  

Leon stares, and there is something about his face that seems to almost be admiring the work.

"He has a lot of changes," Leon says awe. "Apparently for survival and I can't see anything that stands out as dangerous for us. He is harder to hurt. I also notice an absence of a heart and things under his skin."

"I'm a mage.  The process to become a mage involves tearing out the heart and replacing it with a special type of crystal.  My mage-power is shapeshifting and healing.  The other crystals under my skin are chargestones - reservoirs for extra power."

"I see. Do you have other capabilities?"

"Mages only have a single power each, though mine is unusually versatile.  I can heal or shapeshift people I know well enough, or plants or animals I've been taking care of for a while.  I've made a number of medicinal plants in the past, and vaccines.  They aren't inherent, but I also have magical items that let me blend into crowds and be immune to mind-altering magics when worn."

"Oh, okay. That sounds interesting."

Another person speaks with scaly skin. "For whatever what is worth, can we get your word that you're not planning to use those powers maliciously against us?"

He considers possible wordings, and whether he should add a self-defense clause.  Realistically, however, there isn't anything he can do self-defense-wise with his magic that would be better than punching.

"I swear that I have no intentions of using magic maliciously against you."