(2) to be able to touch someone and then they crumble away into dust!
for real? you're a scary person. did you know that?

I think there are 5 powers that would be great to have cause they're really useful in the real world: teleportation (we waste sooooo much time going from place to place and I'd get to know every country and visit everyone, like everyone here in the forum ^^), telepathy (so I can never be fooled and also great to know how people truly feel about you), telekinesis (so that I can always reach that damn remote control without having to get out of bed), healing (myself and others) and shapeshifting (working out sucks big time).
in a more fantasy like way, I'd love to have the Quasar/Silver Surfer thing going and just fly through space and so on. I'd also love to control the weather like Storm. I have this weird connection to the sky and my head is already in the clouds so...

Not a superpower per se, I'd love to be like a top martial artist, like Shang-Chi.