What powers or abilities do the Muto(s) have?

No one knows yet.  From what we know so far, they are partially bioluminescent, but that's about it.  One has eight legs and one can fly, now you're as up to speed as everyone else haha.

If you look closely at the trailer, you notice that when the leg smashes into the ground there's a slight schockwave. Not only that but the claw is glowing a little while it comes down. I personally think that since they absorb radiation, they may be able to generate energy pulses on they're legs

2 things. I noticed that the spider everybody thought was going to be the muto had 8 legs, so does the muto(sort of) and the head was almost the same. But I know there is more than 2 and they do have wings. Dont think im just making this up because I saw it on a youtube video from IGN