Dadonov has 1 goal in 18 games this year. He's brutal and has no value. He went on a bit of a heater at the end of last year after Vegas was out of the playoff race and had nothing to really play for. But no contender would want him.
Some of these other rumours make no sense. Like Minnesota doesn't even have enough cap space to carry a full roster, and are not even in a playoff spot, but for some reason they are going to make an early move for Dadonov? What for?
Florida also has no cap space but they are going to add Ghost? Seems like Ekblad and Montour are running the PP with Forsling another solid puckmover. What will Ghost bring to the table? If they wanted to add help on D, why didn't they look at Ethan Bear for free. Ekblad was hurt and Bear was free. Even then, they didn't make a move. Again, largely because they have $0 cap space.