The Mavs supporting cast around Luka is pretty bad. Isaac hasn't played in years but when he has played he's been an all defense level player. With Isaac rehabbing in the gleague it looks like he could return soon. The magic are loaded with big wings like Paolo Franz and Bol making it hard to see where Isaac would fit in with this young rebuilding team. Maybe the Mavs would be willing to take a shot in the dark with Isaac. If he returns to form Isaac could even be the 2nd best player on the team. Isaac could also never play another NBA game. I think this is a deal that can make sense for both teams and if Isaacs rehab goes well I would absolutely consider this move for Dallas