Pass unless we're getting draft capital in that deal (not going to happen as I'd expect Dallas would demand the opposite). He's 33 and coming off a major knee injury and has had prior history of knee and shoulder surgery. That said, he has always been one of my favorite players to watch with the ball. he does many things few guys can and has the ability to take over games when he wants which would be a plus on this team if he's still able to get to that level.
tbh i actually expect more that the Mavs hold him out this year, tank, and enter a pretty strong draft class looking to rebuild around Flagg (Naz and Dilly don't help that) and to move AD and/or Kyrie for picks given they're currently hard capped at the 2nd apron with injury prone aging stars and a way past his prime Klay Thompson. They're so far from contending that they'd be wise to find a buyer if they can to try reload like OKC did and pick accumulate heavily