Dallas receives: Bradley Beal, Otto Porter, Ian Mahinmi
Why? Because Beal and Porter would thrive next to Doncic's playmaking and ball movement.
New Lineup: Doncic-Beal-Porter-FinneySmith-Jordan with Mahinmi-Kleiber-Barea-Harris-Brunson-Mejeri off the bench.
This team would not be complete, but the Doncic-Beal-Porter core going forward would be really good.
Washington receives: Wes Matthews, Harrison Barnes, Dennis Smith, Dwight Powell, 2 firsts
Why? Because they get out of the luxury tax, get rid of two bad contracts, and get multiple solid players that can help the team continue to compete while they retool. They also get draft picks and Smith.
New Lineup: Wall-Matthews-Barnes-Morris-Howard with Powell-Smith-Oubre-Satoransky off the bench.
Trade Wall and Oubre to the Heat for Dragic and Bam. Go into next season with a youth movement of Smith-Satoransky-Barnes-Bam-Brown.
I realize it's unrealistic, but how fun would it be to watch Beal with Doncic?